Fluval G3 User manual

USER GUIDE
ENTER

HYDRO TECH PERFORMANCE MONITOR
ADVANCED FILTRATION SYSTEM
www.fluval-g.com
IMPORTANT SAFETY INSTRUCTIONS
WARNING - To guard against injury, basic safety precautions should be observed.
READ AND FOLLOW ALL SAFETY INSTRUCTIONS
To guard against injury, basic safety precautions should be
observed when handling the Fluval Canister Filter, including
the following:
1. READ AND FOLLOW ALL
SAFETY INSTRUCTIONS and all
the important notices on the appliance before using.
Failure to do so may result in damage to the unit.
2. DANGER – To avoid possible electric shock, special
care should be taken since water is employed in the
use of aquarium equipment. For each of the following
situations, do not attempt repairs yourself; return the
appliance to an authorized service facility for service or
discard the appliance.
A. If the appliance falls into the water, DON’T reach for it!
First unplug it and retrieve it. If electrical components
of the appliance get wet, unplug the appliance
immediately.
B. If the appliance shows any sign of abnormal water
leakage or if RCD (or GFCI- Ground Fault Current
Interrupter) switches off disconnect the power supply
cord from mains and remove pump from water.
C. Carefully examine the appliance after installation.
It should not be plugged if there is water on parts not
intended to be wet.
D. Do not operate any appliance if it has a damaged cord
or plug, or if it is malfunctioning or it is dropped or
damaged in any manner. The power cord of this
appliance cannot be replaced; if the cord is damaged,
the appliance should be discarded. Never cut the cord.
The display label of this appliance cannot be replaced; if
the display label is damaged or not fully adherent, the
appliance should be discarded.
E. To avoid the possibility of the appliance plug or
receptacle getting wet, position the appliance to one side
of a wall mounted receptacle to prevent water from
dripping onto the receptacle or plug.
A “drip loop” (see photo) should be arranged by the user for
the cord connecting appliance to a
receptacle. The “drip loop” is that
part of the cord below the level of the
receptacle or the connector if an
extension cord is used, to prevent
water traveling along the cord and
coming in contact with the receptacle.
If the plug or receptacle does get wet, DON’T unplug the
cord. Disconnect the fuse or circuit breaker that supplies
power to the appliance. Then unplug and examine for
presence of water in receptacle.
3. WARNING - Close supervision is necessary when any
appliance is used by or near children. This appliance
is not intended for use by persons (including children)
with reduced physical, sensory or mental capabilities,
or lack of experience and knowledge, unless they have
been given supervision or instruction concerning use
of the appliance by a person responsible for their safety.
Children should be supervised to ensure that they do not
play with the appliance.
4. To avoid injury, do not touch moving parts or hot
parts.
5. CAUTION – Always unplug or disconnect all appliances
in the aquarium from electricity supply before
placing hands in water, before putting on or taking off
parts and while the equipment is being installed,
maintained or handled. Grasp the plug and pull to
disconnect. Never yank cord to pull plug from outlet.
Always unplug an appliance from an outlet when not
in use.
6. This is an aquarium filter-pump. Do not use this filter
pump for other than intended use (i.e.: do not use in
swimming pools, bathrooms, etc.). The use of
attachments not recommended or sold by the appliance
manufacturer may cause an unsafe condition. This
filter-pump is not submersible. Never put the filter head
in water or under water jets.
 •Donotusethislter-pumpinswimmingpoolsorother
situations where people are immersed.
 •Thislter-pumpissuitableforuseinwatertemperatures
up to 35 °C.
 •Donotusethislter-pumpwithinammableordrinkable
liquids.
7. This filter pump is suitable for INDOOR use only. Do not
install or store the appliance where it will be exposed to
the weather or to temperatures below freezing.
8. Make sure that the filter-pump is securely installed
before operating it. Do not allow pump to run dry.
9. If an extension cord is necessary, a cord with proper
rating should be used. A cord rated for less amperes or
watts than the appliance rating may overheat. Care
should be taken to arrange the cord so that it will not be
tripped over or pulled. The connection should be carried
out by a qualified electrical installer.
10. SAVE THESE INSTRUCTIONS
For the complete use and understanding of this product
it is recommended that you read this manual thoroughly
and understand all the steps involved. Failure to do so
may result in damage to this product.
ENGLISH

HYDRO TECH PERFORMANCE MONITOR
ADVANCED FILTRATION SYSTEM
www.fluval-g.com EN.3
Replacement Parts Filter Specifications LCD Screen Flow Map Warranty/Registration
CONTENTS
Click on an image to link to section
TWO YEAR
WARRANTY
Electrical Conductivity Filter Media Options Warning Message/ Exploded Parts View
Monitoring System Trouble Shooting/FAQ’s
Introduction HydroTech Technology Installation and Set-Up General Maintenance

HYDRO TECH PERFORMANCE MONITOR
ADVANCED FILTRATION SYSTEM
www.fluval-g.com EN.4
INTRODUCTION
The Fluval G Filter is unparalleled in filtration performance, versatility and control in managing water
characteristics. The G3 model has been designed for aquariums up to 300 Liters (80 US gal.), and will
process 700 liters (185 US gallons) of water every hour. The G6 model will handle aquariums up to 600
Liters (160 US gal.) and processes 1000 liters (265 Gallons) of water every hour.
TheFluvalG’sHydroTechperformancemonitor,featuringaneasytoreadLCD,displaysrealtimewaterow
conductivity and water temperature. The monitor also records historical data which is viewed as a graph on
the LCD. Additionally, media cleaning intervals can be scheduled with the on board alert system.
The Fluval G Filter offers a unique, contemporary and innovative cubic design, combining enormous filtration
capacity with an extended contact time. Due to its compact shape, the Fluval G can be housed in almost
any aquarium cabinet. The other incomparable ease-of-use features include an “efficient” primer, AQUASTOP
valves that enable you to handle routine maintenance without breaking the system’s vacuum and
disassembling the hoses, user-friendly rim connectors, a clog-proof intake strainer, two return options and
large capacity filter baskets for highly efficient biological filtration.
For complete understanding of your Fluval G Filter, please read and follow these instructions on proper
installation, maintenance, service and use. Failure to do so may result in loss of fish life and/or damage
to the filter.
System Overview
The Fluval G filter siphons water and suspended debris through its clog-proof intake strainer, first sending it
through the pleated pre-filtration cartridge where most suspended solids are trapped. The powerful pump
then draws the water through the chemical media cartridge (several chemical media inserts are available
for your aquarium’s specific needs).Fromtherethewaterowsthroughthebiologicalltrationbaskets,
where the Fluval G-Nodes accommodate billions of beneficial bacteria, which are necessary to break down
nitrogenouswastes.Aswaterowsbackintotheaquarium,theadjustableoutputnozzle(orspraybars)
dispersesthereturnowinmultipledirections,agitatingthewaterandcreatingcurrentsthathelpbreak
downorganicwastesandpreventthemfromsettling.Theresultisacontinuousowofcleanand
crystal-clear water.
RETURN TO CONTENTS PAGE

HYDRO TECH PERFORMANCE MONITOR
ADVANCED FILTRATION SYSTEM
www.fluval-g.com EN.5
Superior Filtration Concept
There are three basic types of filtration; mechanical,
chemical and biological. A mechanical filter removes
waste particles and solid debris through mechanical
straining. The chemical filter media actively change
water characteristics through deliberately managed
chemical reactions, and biological filter media break
down and eliminate organic toxins—ammonia and
nitrite—through bacterial action.
Fluval G series uses these basic functions in an
entirely new and unique filtration concept. The
mechanical pre-filter and the chemical filter media
are now housed in cartridges which are directly
accessible from the top of the filter. Both can be
cleaned or replaced without the laborious chore
of disassembling the whole filter. Changing or
maintaining each cartridge is now quick and
mess free.
STAGE I
Mechanical Filtration
Cartridge
Specific to the Fluval G
the traditional
mechanical filtration
foam has been replaced
with compact high
capacity and long
lasting pleated pre-filter cartridge that traps
significantly more debris than traditional foam filter
models. This is a closed system within the Fluval G,
soallwaterthatowsthroughtheltermustrst
pass through the pre-filter cartridge for pre-cleaning.
The pre-filter cartridge is available in two formats:
standard weave and 75μm for marine aquariums or
water polishing in freshwater tanks. The effective-
ness of the Fluval G’s pre-filtration process means
that less solid waste is solubilised in the aquarium
water for less waste accumulation and also makes
the chemical and biological filtration components of
the system more effective.
STAGE II
Chemical Filtration
During the subsequent chemical filtration, all
waterowingthroughtheGlterpassesthrough
the chemical media cartridge. The Fluval G offers a
combination of media options to make chemical
filtration simpler and more efficient. Featuring
high-capacity ionic exchange filtration media, the
system will efficiently remove nitrates, phosphates
andwaste.Forpureconsumerexibility,the
chemical cartridges can be refilled with any type
media the aquarium owner chooses.
Regardless of chemical media type the design of
thechemicalcartridgeandsubsequentwaterow
ensures maximum water contact resulting in a highly
efficient filtration process.
STAGE III
Biological Filtration
Following the mechanical and chemical cleaning,
water enters into the biological filtration stage.
The Fluval G Bio Baskets are filled with the new
Fluval G-Nodes which are specifically engineered and
manufactured so the tunnel and cave sizes perfectly
accommodate billions of nitrifying bacteria to purify
aquarium water. The Fluval G’s biological filtration
media comes in two sizes for maximum compaction
and lasts six months before maintenance is required.

HYDRO TECH PERFORMANCE MONITOR
ADVANCED FILTRATION SYSTEM
www.fluval-g.com EN.6
Filtration Options
Fluval offers an extensive array of premium
quality replacement filter media. The true power of
the Fluval G cartridge system is the combination of
filter design and filtration media options. The
combinationprovidesmaximumexibilitywhen
managing the aquatic environment. See Filter Media
Options Section for more information on the types
of Fluval G and Fluval brand media available.
QUALITY FEATURES
Push Button Instant-
Priming System
With the Fluval G, there
is no need for manual
siphoning. You can draw
water into the system
by simply pushing the
priming button down all
the way two to three
times in quick
succession.Aswaterowsthroughtheintakehos-
ing, it will fill the canister, pushing air out of its way.
Any remaining air will be expelled through the output
nozzle, causing the water in the aquarium to bubble.
Telescopic Intake Stem
and Clog-Proof Strainer
The telescopic intake
tube adjusts to different
aquarium depths and
the adjustable and rotat-
able Fluval G intake strainer is designed to siphon
water quickly. Covered by a multi-lamella screen
designed to repel debris, it is virtually clog-proof,
so there is a lesser chance of a solids build-up that
couldinterferewithwaterow.Theintakestrainer
is also modularized - meaning you can add additional
ones to have the intake go along behind plants or
rocks. Each strainer snaps together at the ball joints
so that you can turn them to the desired angle as
you wish. The end of the intake has been capped for
nearly an inch up from the bottom to avoid sucking
up the sand or gravel bed.
Output Nozzles/Spray Bars
The output nozzles or spray bars swivel on a “Y”
connector and can be adjusted to send streams
of clean water toward all corners of the aquarium,
ensuring maximum circulation. Agitating the water
this way creates currents that carry the debris until
it can be drawn into the filter by the intake strainer.
With more waste solids kept suspended in the water,
fewer settle keeping the bottom surfaces and the
entire aquarium cleaner.
AQUASTOP System
The AQUASTOP system
makes maintenance
easy, allowing you to
stopthewaterow
by simply bringing the
AQUASTOP valve lever
into an upright position.
By completely lifting
the release lever, the
AQUASTOP assembly can be removed from the filter
without separating the hosing. The AQUASTOP valve
levercanalsobeusedtoregulatethewaterow
with no harm to the motor or its components.
Rim Attachments
For extra quick setup,
the innovative rim at-
tachments easily slide
over any aquarium rim
up to 32mm 1.25” in
width and securely hold
the intake and output
assemblies in place.
Zama Lid Fasteners
Chrome plated cast
ZAMA levers provide a
strong and secure seal
and do not corrode or
oxidize even when in
contact with salt water.
They are made of Zamak
which provide superior
strength and integrity.
able Fluval G intake strainer is designed to siphon

HYDRO TECH PERFORMANCE MONITOR
ADVANCED FILTRATION SYSTEM
www.fluval-g.com EN.7
HYDROTECH TECHNOLOGY
Microprocessor Controlled
From the drive pump to the interactive 8000 pixel
LCD panel all functional aspects and monitoring
features of the Fluval G operational systems are
powered by a Microchip Flash Microcontroller with
nanoWatt XLP™ Technology. This application is a
first for aquatic filtration and have resulted in
advanced features to help hobbyists with their
passion for fish keeping.
HydroTech Performance Monitor
The Fluval G incorporates a distinctive and intelligent
monitoring system that provides a continuous
performance overview displayed on the LCD panel.
To indicate a clogged pre-filter cartridge and/or
assure maximum water circulation at all times, the
owrateispermanentlyhighlightedonthescreen.
Information about the aquarium water temperature,
as well as conductivity is always at your fingertips.
To let you know when the filter service or replace-
ment was completed, maintenance schedules are
also displayed on the main screen. The performance
monitorwillashAlertwarningswhenanyofthepa-
rameters go beyond the pre-set or defaulted limits.
Forexample,whenwaterowdropsbelow30%,the
lowowwarningwillashonscreen.
Electrical Conductivity
(EC) Monitoring System
The Fluval G instrumen-
tation senses water con-
ductivity through the use
of two titanium probes
that instantly recognizes if the aquarium contains
fresh water or salt water and automatically displays
the temperature corrected values in the proper
scale. The system constantly monitors aquarium
conductivity and allows the setting of maximum and
minimum visual alarms. It also provides a rolling line
graph, which records the historical daily readings
(1 reading every 12 hours), covering up to 48 days
of historical data.
Read more about Electrical Conductivity and how to
choose correct levels in the Electrical Conductivity
Monitoring System Section.
Advanced Motor Performance
The Fluval G is powered by a three component ad-
vanced technology drive system providing power, long
term reliability with virtually zero noise and high per-
formance. The powerful yet compact synchronized
dual drive coil is controlled by one of two Fluval G
microprocessors which continuously monitor and ad-
just start speed, impeller direction, power absorption
and performance. The ferrite impeller spins on an
aluminum oxide ceramic impeller shaft and rides a
high temperature performance polymer thrust bear-
ing offering a unique combination of wear resistant
properties. With unheard of quality components, ad-
vanced control system and low energy consumption
the Fluval G drive pumps equate to unparallel durabil-
ity and performance.
ESC
RETURN TO CONTENTS PAGE

HYDRO TECH PERFORMANCE MONITOR
ADVANCED FILTRATION SYSTEM
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INSTALLATION AND SETUP
IMPORTANT: Read all instructions before
beginning.
 •Forbestresults,topoffwaterinaquarium
before beginning setup.
 •Allow45-60minutesforsetupandinstallation.
 •Ifatanytimeyouneedmoredetailwiththe
instruction, please visit www.fluval-g.com to
follow a photo slide show of these step-by-step
instructions.
 •Toolsrequired:Utilityknifeorapairofscissors
CAUTION: DO NOT PLUG IN FILTER UNTIL SETUP
IS COMPLETE AND THE UNIT HAS FILLED WITH
WATER.
WARNING: This filter-pump is not submersible.
Never put the filter head in water or under
water jets.
STEP 1: Unpack and identify all parts.
See Parts Diagram for a visual guide.
STEP 2: FILTER PLACEMENT
This is a gravity-fed system! For it to work properly,
all installation requirements must be properly
followed:
The top of the filter
must be at least 20 in.
(50 cm) below your
aquarium’s water level,
but never more than
4.9 ft. (150 cm). The
hosing supplied with the
unit is 9.8 ft. (3 m) long.
Do not use longer and/
or different type hosing, as the priming efficiency and
waterowratecouldbediminishedandthelter
may not operate correctly.
 •NEVER INSTALL THE FILTER ABOVE THE
WATER LEVEL. The aquarium water level should
never be more than 6 in. (15 cm) below your
aquarium rim.
 •Forbestperformance,theltershouldbeplaced
completely beneath the aquarium in such a way
that the AQUASTOP assembly is always within
easy reach and can be removed easily for
maintenance purposes.
STEP 3. INSTALLING THE FILTER
A. Preparation of Pre-Filter Cartridge
Open the cartridge lid.
The silver AQUASTOP
valve lever must be
completely up and the
black AQUASTOP release
lever must be completely
pushed down in order to
open the lid.
Remove the pre-filter cartridge, located on the left
(when facing the filter), by turning the knob counter-
clockwise from the “ ” position to the “ ”
position. Pull out the cartridge.
Rotate the pre-filter
cartridge anti-clockwise
to separate it from the
priming chamber.
 • To removethecartridgefromitsreddirt
collection cup, simultaneously squeeze the ridged
areas found on either side of the cup’s grooves.
RETURN TO CONTENTS PAGE
20” (50 cm) min
4.9’ (150 cm) max

HYDRO TECH PERFORMANCE MONITOR
ADVANCED FILTRATION SYSTEM
www.fluval-g.com EN.9
Rinse the inside and
outside of the cartridge
with fresh water to
remove any impurities.
Note that debris is col-
lected on the interior of
the cartridge.
 •Re-placethecartridgecupandattachthe
mechanical cartridge to the priming chamber
using a clockwise motion.
 •Putthemechanicalcartridgeassemblyaside
(preferably into a bucket.).
Maintenance Note: The mechanical cartridges
should be rinsed every 14 days— sooner if the
“Alert low flow” warning appears. The filter
cartridge included is a general usage cartridge.
To remove smaller debris in salt water or in
low-sediment aquariums, a fine cartridge can
be purchased. To find an online retailer visit
www.fluval-g.com.
B. Preparation of Chemical Filter Cartridge
 •Removethechemicalltercartridge,locatedon
the right (when facing the filter), by turning the
knob counter-clockwise from the “ ” position
to the “ ” position. Pull out the cartridge.
 •Releasethechemicalcartridgecupfromthe
assembly head by pushing against one of the
two marked black clips located in the middle of
the cartridge. While pressing the clip, pull the
cup downwards.
If using the carbon
cartridge provided
remove it from the
cartridge cup and then
remove the plastic bag.
After rinsing it thorough-
ly with tap water, place
the cartridge back into
the bottom cup making
sure it’s properly aligned
If using another loose or
granulated chemical
media i.e. Fluval Lab
Series Nitrate or
Phosphate Remover, fill
the cup to 1 cm below
the top rim.
 •Readmoreaboutltermediachoicesat
www.fluval-g.com.
 •Beforereplacingthecartridgecap,checkforany
particles or debris on the outer lip or underneath
the cap. Debris in either area can prevent a
proper seal from taking place.
 •Replacecartridgecapandre-insertcartridge
into cartridge cup. It can only be re-assembled
following the correct left to right orientation.
Re-attach cartridge cup to chemical cartridge
cap by aligning the arrows.
 •Putthechemicalcartridgeassemblyaside.

HYDRO TECH PERFORMANCE MONITOR
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C. Insert the filter gasket
 •Openthesilvermetallidfastenerslocatedon
each corner of the filter. Take off the filter head
and carefully set it aside so not to damage the
sensors on the underside of the lid.
Align the red silicone
seal into the black
groove located around
the interior rim of the
canister. Run your finger
all the way around the
gasket to make sure it is
seated properly.
D. Biological Media Baskets
Lift out the biological
media basket cover and
put it aside.
Using the handles, lift
out the biological
baskets. (The Fluval G3
has two baskets; the
Fluval G6 has three
biological baskets).
 •TakethebasketsandbiologicalG-nodestoasink.
Remove G-nodes from the plastic bags, mixing
the small and large G-nodes evenly into each
basket.
Leave enough space
at the top—no nodes
should be protruding
from the upper edges
of the baskets. To avoid
problems when stack-
ing the baskets, there
should be a minimum
5mm between the bas-
ket edge and G-nodes.
 • AddmoreG-nodes,ifdesired.
Rinse each basket
thoroughly under running
tap water to remove any
dust particles.
Place baskets back into
the canister, carefully
aligning large grooves on
the baskets with the edg-
es inside the canister.
 • Placethebiologicalbasketcoverbackontopof
the biological media baskets.
 • Alignthelterheadonthecanister.Pushdown
so that all four corners of the lid are all the way
down. If any of the corners won’t go all the way
down, check that all corner fasteners are fully
opened. Do not force.
 • Whenthelterheadisproperlyaligned,closeall
four metal lid fasteners.

HYDRO TECH PERFORMANCE MONITOR
ADVANCED FILTRATION SYSTEM
www.fluval-g.com EN.11
 •Replacethemechanicalandchemicalcartridges
back into place making sure to align them
properly and then turning the knobs clockwise
to “ ” cartridges into place.
 •Ifthecartridgeliddoesn’tclose,thecartridges
have not been installed properly.
STEP 4: INSTALL RIM ATTACHMENTS
A. Placement
Insert two suction cups
on each side of the rim
attachment assemblies
so the suction cups are
facing each other.
 •Onerimattachmentwillholdtheintakestrainer
and the other the output nozzle or spray bars.
 •Atoppositeends,placetherimassemblyover
aquarium’s back rim, making sure the rim with
the nut is on the outside.
B. Install Telescopic intake stem
 •Pushthetelescopicintakestemfullyintothe
cross rim assembly up to the top. The intake
strainer must be placed at least 3 in (7.5cm)
from the bottom of the aquarium gravel.
Important: Position the intake strainer as far away
as possible from any air source (e.g. air stones,
aeration devices, protein skimmers, the output
nozzles or spray bars). Air entering the intake
strainer will reduce filter efficiency.
C. Install Output nozzles
The “Y” outlet comes
with the output nozzles
attached.
To use the spray bars, first remove the output
nozzles by twisting them to one side so they pop off
the “Y”. You can then attach the spray bars directly
to the “Y” outlet.

HYDRO TECH PERFORMANCE MONITOR
ADVANCED FILTRATION SYSTEM
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STEP 5: CONNECTING HOSES
Important: Hosing should always follow a straight
path from the filter to the aquarium rim with
some slack but no loops. The filter will not work
efficiently if the hose is too long or too short.
A. Install the AQUASTOP
 •LiftthesilverAQUASTOPvalveleverontopof
the filter to a full upright position. Next lift the
black AQUASTOP release lever to the left.
Important: to avoid damaging the AQUASTOP
levers, always follow the recommended
sequences/procedures and never force anything.
Insert the AQUASTOP
Valve into the top of the
filter, with indicator
arrows facing front and
close the AQUASTOP
release lever. This
engages the
AQUASTOP valve.
Then pull the aquastop
valve lever down.
Note: Don’t force the
silver valve lever or re-
lease lever. If it doesn’t
close easily then you
need to reinstall the
Aquastop assembly
making sure to align it
properly.
B. Connect the intake hose
The intake hose will con-
nect to left side of the
AQUASTOP valve (down
arrow). Push one end of
the hose all the way onto
the barbed adaptor, turn
the nut counter-clock-
wise as tightly as pos-
sible without forcing it.
 •Stretchthehoseuptotheintakecrossrim
assembly . Using scissors or a utility knife, cut
the hose just above the lock nut.
 •Takethecrossrimassemblyofftherim
attachment and push the hose onto the barbed
connector, turn the nut lock clockwise securing
the hose to the rim connector.
Place the intake
assembly back onto the
rim attachment, press-
ing it into place until you
hear it ”click.”

HYDRO TECH PERFORMANCE MONITOR
ADVANCED FILTRATION SYSTEM
www.fluval-g.com EN.13
C. Connect the output hose
 •Theoutputhosewillconnectontherightsideof
the AQUASTOP (up arrow). Repeat this same
procedure used for the intake hose to connect
the hose for the output hose.
Important: Hosing should always follow a straight
path from the filter to the aquarium rim, with some
slack, but no loops. The shorter the hosing, the
better the unit will perform. Do not cut too short.
If necessary, you can always cut it shorter later.
STEP 6. STARTING THE PUMP
After having topped up
the aquarium with water,
quickly and vigorously
push the priming button
all the way down 2-3
times until the water
startsowingintothe
filter.
 • Whenthelterhascompletelylledwithwater
and all air bubbles have stopped coming out of
return nozzles connect it to the power supply
outlet.
 • TheLCDdisplaywillswitchonandafterashort
pause it will show the start up and setup
sequence of the filter. Once the start sequence
  hasended,thepumpwillinitiatethewaterow,
provided the filter is completely filled with water.
The pump will not operate if the filter is not
completely full of water.
 • Oncethewaterisowingproperly,checkthe
aquarium water level again and, if necessary,
restore it to adequate levels.
STEP 7. FILTER SETTINGS
You are now ready to set up your filter options using
the menus.
MENU SETTINGS
Start up Screen
When the filter is first turned on the welcome
screens will be displayed with the messages “Fluval
G3 / G6” “Language Selection” then “initializing.”
When the language screen is displayed (English is
the default setting) other language choices can be
made ( French (FR), German (D), Spanish (ES), Italian
(IT). To chose an alternate language use the scroll
keys to move to the selected language. Press Enter
to register the language. If no language is chosen,
the filter will move to the default English setting. See
the section on Global Settings for more information.
MAIN MENU
1. MECH: Shows the elapsed days from last
recorded maintenance operation of the
mechanical filtration cartridge.
2. CHEM: Shows the elapsed days from last
recorded chemical cartridge maintenance
operation.
3. BIOL: Shows the elapsed weeks from last
recorded biological maintenance operation.
4. SCROLL UP/DOWN: Both keys allow you to
scroll to and through menu choices as well as
and increasing and decreasing values.
5. WATER FLOW:Displaystheapproximateow
 rate.Whena100%owisdetectedthe
triangle will be full and water will move through
 thetubes.Whentheowratedecreases,the
triangle will empty accordingly.
6. T°C: Displays the aquarium water temperature
measured. If electrical supply is 50Hz the
temperature is automatically set to Celsius
degrees (°C), if the electrical supply is 60Hz, the
temperature is set to Fahrenheit degrees (°F).
7. EC _S/cm: Displays the value of water electrical
conductivity monitored by the filter by automati-
cally distinguishing if it’s a marine or fresh water
aquarium. Allow 48 hrs for proper calibration.
ESC
8.
1.
2.
9.
6. 5.7.
3.
4.

HYDRO TECH PERFORMANCE MONITOR
ADVANCED FILTRATION SYSTEM
www.fluval-g.com EN.14
8. ESCAPE KEY: Repeatedly pressing the “ESC” key
brings you back to the main screen.
9. ENTER KEY: This key confirms and then sets the
information entered. If you press the “ESC” key
without having first pressed the “ENTER” key to
confirm your data will not be saved.
GLOBAL AND OPERATIONAL SETTINGS MENUS
1. To reach either menu from the Main Menu, use
the scroll keys.
2. When the desired Menu is displayed, press
“Enter” to scroll through the available options
within same Menu.
3. When the desired option is highlighted, press
“Enter” to open its specific sub-screen.
“GLOBAL SETTINGS” MENU
This menu allows you to set the options of:
Display language, Screen contrast, Temperature
scale, Dimmer delay and Default setting.
To access the global settings menu press the scroll
key up or down.
To set any options from
this menu including
options on the
submenus, use the
following procedure:
 • Press“Enter”toaccessthemenu.
 • Usethescrollkeystohighlightthedesired
selection.
 • Press“Enter”toenterthesub-screen
 • ONLYIn“SetContrast”Press“Enter”againto
activate the scroll keys (The value option will start
  toash)
 • Usethescrollkeystochangevalues.
 • Press“Enter”toregistertheselection.
 • Ifnobuttonispressed,thescreenreturnstothe
previous settings after 3 minutes.
 • Continuouspressingofthe“ESC”keywillbring
you back to the main screen.
“OPERATIONAL SETTINGS” MENU
Within this menu you can set “Temperature and
Conductivity Alarm Points” as well as “Mechanical,
Chemical and Biological maintenance schedules”.
To access the “Operational Settings” menu press the
scroll keys up or down.
To set any options from
this menu including
options on the
submenus, use the
following procedure:
 • Press“Enter”toaccessthemenu.
 • Usethescrollkeystohighlightthedesired
selection.
 • Press“Enter”toenterthesub-screen.
 • Usethescrollkeystohighlighttheadjustable
value.
 • Press“Enter”(Thevaluewillstarttoash)
 • Adjustthevaluewiththescrollkeys
 • Press“Enter”toregistertheselection.
 • Ifnobuttonispressed,thenafter3minutesthe
screen returns to the main screen.
 • Continuouspressingofthe“ESC”keywillbring
you back to the main screen
TEMPERATURE
The following options are available:
Water Temp: Displays the aquarium water
temperature.
Alert: Turns “ON / OFF” the “Alert Temperature,
out of range” message. When water temperature
goes out of the set temperature range, the T°C line
onthemainscreenwillash.
Min/Max: Sets the min/max values for the water
temperature range. The minimum temperature can’t
be higher than the maximum and vice versa.

HYDRO TECH PERFORMANCE MONITOR
ADVANCED FILTRATION SYSTEM
www.fluval-g.com EN.15
CONDUCTIVITY POINTS
The following options are available:
Conduct: Displays the water conductivity value.
Find more information on conductivity on
www fluval-g.com.
Salinity: Displays water salinity in PSU. Salinity only
appears if water is marine
Alert: Turns “ON / OFF “Alert Conductivity, out of
range” message. When conductivity goes out of
rangetheEClineonthemainscreenwillash.
Min/Max: Sets the min/max values for the water
conductivity range. The minimum conductivity can’t
be higher than the maximum and vice versa.
MECHANICAL SCHEDULE
The following options are available:
Elapsed Days: Counts the days elapsed since the
last recorded maintenance. This information is
displayed on the “MECH” line on the main menu. To
reset to zero use the scroll keys to select the value,
press enter to choose the option, use the scroll key
to choose “YES” and press “Enter”.
Alert: Turns the warning message for “Mech”
maintenance alert “ON or OFF”.
Days to alert: Use the scroll keys to choose the
days between the previous and next maintenance.
The highest number available is 99.
CHEMICAL SCHEDULE
The following options are available:
Elapsed Days: Counts the days elapsed since the
last recorded chemical maintenance. This
information is displayed on the “CHEM” line on the
main menu. To reset to zero use scroll keys to select
the value, press enter to choose the option, use the
scroll key to choose “YES” and press “Enter”.
Alert: Turns the warning message for “Chem”
maintenance alert “ON or OFF”.
Days to alert: Use the scroll keys to choose the
days between the previous and next maintenance.
The highest number is 99.
BIOLOGICAL SCHEDULE
The following options are available:
Elapsed Weeks: Counts the weeks elapsed since
the last recorded biological maintenance. This
information is displayed on the “Biol” line on the
main menu. To reset to zero use scroll keys to
select the value, press “Enter” to choose “YES” and
press “Enter”.
Alert: Turns the warning message for “Bio”
maintenance alert “ON or OFF”
Weeks to alert: Use the scroll keys to choose the
weeks between the previous and next maintenance.
The highest number is 99.

HYDRO TECH PERFORMANCE MONITOR
ADVANCED FILTRATION SYSTEM
www.fluval-g.com EN.16
GRAPHIC DISPLAYS
These display screens have no variable settings, but
supply crucial information for your filter.
FILTER FLOW GRAPH
shows the approximate
owrateoverthelast
48 days.
TEMPERATURE GRAPH
shows the temperature
trend over the last
8 days of operation.
CONDUCTIVITY GRAPH
represents the conduc-
tivity trend over the last
48 days.
ALARMS & WARNING MESSAGES
The “G” series software continuously monitors filter
operations and will provide “Alert” signals for some
abnormal conditions. It also displays reminders
about scheduled maintenance. When warnings or
alerts are displayed they will alternate with the Main
Screen. If there is more than one warning message
to display, the system will display one message in
order of priority.
#1 PRIORITY
Sensing air in filter
This message appears
when there is not
enough water in the
filter.
For further instructions visit www.fluval-g.com.
#2 PRIORITY
Blocked Impeller.
This message appears
when the impeller is
blocked, and the filter is
not pumping water.
For further instructions visit www.fluval-g.com.
#3 PRIORITY
Alert Temperature
This message appears
when the aquarium
water temperature is
outside the set range.
For further instructions visit www.fluval-g.com.
#4 PRIORITY
Alert Conductivity.
This message appears
when the aquarium
water conductivity is
outside the set range.
For further instructions visit www.fluval-g.com.
#5 PRIORITY Low Flow.
This message appears
whenthewaterow
is equal or below the
factory-set minimum.
For further instructions visit www.fluval-g.com.

HYDRO TECH PERFORMANCE MONITOR
ADVANCED FILTRATION SYSTEM
www.fluval-g.com EN.17
GENERAL MAINTENANCE
MECHANICAL FILTER MAINTENANCE
The mechanical pre-filter cartridge should be rinsed
every14days—soonerifthe“Alertlowow”
warning appears. If the Mechanical Schedule has
been correctly programmed, you will receive an alert
when it’s time to clean the cartridge.
Equipmentneeded:Towel,bucket,athead
screwdriver
TO CLEAN THE FILTER:
1. Unplug the filter from the electrical supply.
2. Open the cartridge lid. The silver AQUASTOP
valve lever must be completely up and the black
AQUASTOP release lever must be completely
pushed down in order to open the lid. If the
AQUASTOP lever is not fully lifted, the valve may
still be open and cause the water to spill from
the filter when the mechanical cartridge is
removed.
3. Remove the mechani
cal pre-filter cartridge,
located on the left (when
facing the filter), by turn-
ing the knob counter-
clockwise from the “ ”
position to the “ ”
position.
4. Carefully lift up the
cartridge so the excess
water stays in the
bottom cup and doesn’t
spill back into the filter.
The bottom cup acts as
a dirt receptacle, and
this water needs to be
emptied into a bucket or
sink.
DO NOT POUR THIS WATER BACK INTO THE FILTER.
5. To avoid water spillage, place the entire assembly
into a bucket before proceeding.
6. Rotate the mechani-
cal pre-filter cartridge
anti-clockwise to sepa-
rate it from the car-
tridge head.
7. To remove the cartridge from its dirt collection
cup, simultaneously squeeze the ridged areas found
on either side of the cup’s grooves.
8. Rinse the inside and
outside of the cartridge
thoroughly with warm
tap water.
RETURN TO CONTENTS PAGE

HYDRO TECH PERFORMANCE MONITOR
ADVANCED FILTRATION SYSTEM
www.fluval-g.com EN.18
9. Debris is collected on
the inside of the filter
so the bottom plate
needs to be removed in
order to do a thorough
cleaning. To remove the
bottom plate, carefully
insertaatheadscrew-
driver between the plate head and cartridge. Twist
slightly and the bottom lid should come off easily. Do
not force anything.
10 . Rinse the inside of the cartridge thoroughly with
warm tap water, while using the supplied brush
to scrub the interior and remove all debris
collected. Before re-using the cartridge inspect
the pleats for any rips or tears in the mesh and
replace if necessary. Rinse out the dirt collection
cup as well.
11 . Re-install the bottom plate onto the cartridge,
making sure the notches on the cap and
cartridge are lined up correctly.
12 . Attach the dirt collection cup back onto the filter
cartridge. Make sure the cup is aligned
properly on the cartridge. NEVER OPERATE THE
FILTER WITHOUT THE DIRT COLLECTION CUP
IN PLACE.
13 . Before re-assem-
bling, always check that
the red O ring of the
mechanical pre-filter car-
tridge assembly is free
from debris and dirt. At
the same time, rinse the
priming chamber under-
neath a tap.
14 . Re-attach the
mechanical pre-filter
cartridge by turning it
clockwise onto the
cartridge head.
15 .Carefully re-insert the mechanical pre-filter
cartridge by slowly pushing it down into the
chamber and allowing it to fill itself with the
water. If it’s pushed in too fast or too hard,
water in the chamber may spill out.
16 .Align the cartridge so the notch at the back right
of the cartridge head matches the key on the
motor head, and then turn the top knob clock
wise to lock the cartridge into place.
17 .Close the cartridge lid and pull down the
AQUASTOP valve.
18 . Reconnect the filter to a power outlet.
19. If no water starts
circulating, push the
priming button down
vigorously several times.
This should evacuate any
trapped air and restart
thewaterow.

HYDRO TECH PERFORMANCE MONITOR
ADVANCED FILTRATION SYSTEM
www.fluval-g.com EN.19
20 .Oncethewaterisowingproperly,checkthe
aquarium water level again and, if necessary,
restore it to adequate levels.
21 . Reprogram the mechanical maintenance
schedule by going to the Operational Menu on
the front panel. Enter to access the menu, and
use the scroll key to move down to the
Mechanical Schedule option.
22 . Press Enter to highlight the schedule. Press
enter again to reset the counter.
23 . Scroll to “yes” and press enter, and the counter
will start up from zero.
24. Press Esc to leave.
25.Repeat this process in another 14 days or
sooner if the “LOW FLOW” Alert appears.
CHEMICAL FILTER MAINTENANCE
The type of chemical media used will determine
how often the chemical filter must be replaced. For
example, carbon becomes saturated quickly and
needs to be replaced once every 30 days at the very
latest. See Filter Media in the Filter Media Options
Section for more information on the recommended
types of media available.
In between monthly replacements, the chemical cup
should also be rinsed out using aquarium water to
remove any impurities.
Equipment needed: Towel, bucket.
TO CLEAN THE FILTER:
1. Unplug the filter from the electrical supply.
2. Open the cartridge
lid. The silver
AQUASTOP valve lever
must be completely up
and the black
AQUASTOP release
lever must be completely
pushed down in order to
open the lid.
If the AQUASTOP lever is not fully lifted, the valve
may still be open and cause the water to spill from
the filter when the cartridge is removed.
3. Remove the chemical filter cartridge, located on
the right (when facing the filter), by turning the
knob counter-clockwise from the “ ” position
the “ ” position.
4. Carefully lift up the cartridge so the excess water
stays in the cartridge and doesn’t spill back into
the filter. The bottom cup acts as a dirt
receptacle, and this water needs to be emptied
into a bucket or sink. DO NOT POUR THIS
WATER BACK INTO THE FILTER.
5. To avoid water spilling, place the entire cartridge
assembly inside a bucket before proceeding.
6. Release the chemical cartridge cup from the
assembly head by pushing against one of the two
marked black clips located in the middle of the
cartridge.
7. While pressing the clips, pull the cup
downwards.

HYDRO TECH PERFORMANCE MONITOR
ADVANCED FILTRATION SYSTEM
www.fluval-g.com EN.20
8. Once extracted, the cartridge can be refilled or
replaced with the desired chemical media.
If you are re-filling the chemical filter cartridge with
Bulk Media:
a. Remove the cartridge from the cup.
b. Remove the bottom cap of the chemical
cartridge, empty it and refill to 1cm below the
top rim.
c. Before replacing the cartridge cap, check for
any particles or debris on the outer lip or
underneath the cap.
d. Debris in either area can prevent a proper seal
from taking place.
e. Replace cartridge cap.
Note: If using a non-Fluval brand chemical media,
it’s important to make sure the chemical media
can’t escape through the chemical media cartridge
slots. When in doubt place chemical media in a
separate Fluval chemical media bag then insert
into chemical cartridge.
9. Place cartridge back
into the cartridge cup.
10. Re-attach the
cartridge cup to the
filter head. This can only
be done by aligning the
arrows on the cartridge
cup and the cartridge
cap.
11. Carefully re-insert
the chemical filter by
slowly pushing it down
into the chamber and
allowing it to fill itself
with the water. If it’s
pushed in too fast or
too hard, water in the
bottom chamber may
spill over the edges.
12 . Align the cartridge assembly of the cartridge
so the notch at the back right of the cartridge
head matches the key on the motor head, and
then turn the top knob clockwise to lock the
cartridge into place.
13. Close the cartridge
lid and pull down the
AQUASTOP lever and
restore power.
14. If no water starts
circulating, push the
priming button down
vigorously several times.
This should evacuate any
trapped air and restart
thewaterow.
15 .Oncethewaterisowingproperly,checkthe
aquarium water level again and, if necessary,
restore it to adequate levels.