Hagen FLUVAL 05 Series User manual

1Hosing
2Rim connector assemblies (2)
3Suction cups (4)
4Intake assembly with suction cup
5Output nozzle assembly
6AquaStop valve
7Canister cover/pump housing
8Instant-prime handle (attached)
9 Lift-lock clamps (attached)
10 Impeller cover and cover gasket
11 Impeller shaft tool: Models 105 & 205 only
12 Filter canister (media baskets inside)
PRODUCT PARTS
Fluval Canister Filter
Canister Configurations
FLUVAL 105 FLUVAL 205 FLUVAL 305 FLUVAL 405
AFilter screen 1 1 1 1
BMedia cover 1 1 1 1
CMedia baskets 2 3 3 * 4*
D. Media basket trays 1 1 0 0
EFluval Carbon 1 2 3 4
FFluval BioMax 1 2 3 4
* divided baskets
CONTENTS
English language instructions ................................................................................................................EN-1
French language instructions..................................................................................................................FR-1
Spanish language instructions ................................................................................................................ES-1
German language instructions ..............................................................................................................DE-1
EN-1

EN-2
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.
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 illustration 1) 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. Close supervision is necessary when any appliance is
used by or near children.
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 whilst the equipment is being installed,
maintained or handled. When inserting or removing
the pump from the water, always pull out the main
electricity plug. Never yank cord to pull plug from
outlet. Grasp the plug and pull to disconnect. Always
unplug an appliance from an outlet when not in use.
6. This is an aquarium filter-pump. Do not use this pump
for other than intended use (i.e.: do not use in swim-
ming pools, bathrooms, etc.). The use of attachments
not recommended or sold by the appliance manufac-
turer may cause an unsafe condition.
• Do not use this pump in swimming pools or other
situations where people are immersed.
• This pump is suitable for use in water temperatures
up to 35 °C.
• Do not use this pump with inflammable or drinkable
liquids.
7. This 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 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 this manual is
thoroughly read and understood. Failure to do so
may result in damage to this product
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:

The Fluval 05 Series filters offer several state-of-
the-art features to ensure reliable operation and
trouble-free maintenance. Media is packed into
filter baskets at the factory in the recommended
positions for basic filtration in order to save you
time and eliminate guesswork. The instant-
prime handle ensures startup ease. Plus, to
make maintenance quicker, the AquaStop valve
creates an air - and watertight seal so you can
disconnect hosing without breaking the vacuum
that will be necessary to resume operation
without priming. For added convenience, media
baskets are self-contained and interchangeable
so that media can be rinsed or replaced in each
one, independently of the others.
The intake assembly siphons aquarium water
and suspended debris in through its clog-proof
strainer. Water flows down through the foam
screen frame, which traps large particulate
matter. The filter’s powerful pump then draws
the water up from the base of the unit through
the media baskets for the customized stages of
mechanical, chemical, and biological filtration
that have been designed through media choices
and placement. Filter media removes both waste
particles and liquid impurities and can also be
actively treated to change the water’s chemical
characteristics. As water flows, it brings oxygen
into the system, feeding beneficial bacteria and
breaking down nitrogenous wastes. After
passing through all baskets, purified water
enters the impeller well to be pumped back into
the output hosing. As the output nozzle
disburses the water, it creates currents that help
break down wastes. All for a continuous flow of
pure water, custom treated for a healthy,
thriving aquarium environment.
Fluval MultiStage Filters offer advanced
pumping technology and a versatile combination
of mechanical, biological and chemical filtering
capabilities. This versatility enables you to
customize your aquarium environment to meet
the specialized needs of your unique collection of
fish and aquatic plants. Your filter comes with
prepacked filter media that will work well for
most basic aquarium setups. However, you have
the option of selecting different media, or
alternative configurations of media, if you wish.
Because you have so much flexibility in selecting
and positioning media, you are able to control
water characteristics with far greater precision
than with traditional filters.
In addition, Fluval 05 Series Filters provide 35-
55% more volume than would be possible with
round canisters of the same outer dimensions.
Increased volume means a greater mass of filter
material and a larger filtration area. Fluval
Filters multiply this advantage by directing
water into complex flow paths for greatly
increased contact with filtration media.
The result? Maximum efficiency, reduced main-
tenance requirements, and the reliable flow of
pure, properly conditioned aquarium water.
Fluval Filters are designed and engineered for
dependable performance and ease of use.
Features like click-on rim connector assemblies
for hosing and one-step lift-lock clamps on the
canister make setup and routine maintenance
quick and convenient. Plus, Fluval’s proprietary
AquaStop valve lets you disconnect, then
reconnect, the hosing without compromising
the system’s vacuum seal. This means you can
stop the filter, then restart it instantly—without
priming—for quicker, easier, more convenient
maintenance.
The superior performance and capability of this
filter is backed by Fluval’s well-earned reputation
for the best in fish and aquarium care, and HARS
(Hagen Aquatic Research Station) certification—
your assurance of the most up-to-date and
reliable research in aqua-care science.
For complete understanding of your Fluval
Multi-Stage Canister Filter and enjoyment of all
its capabilities, please read and follow these
instructions for proper installation, main-
tenance, and use. Failure to do so may result in
loss of fish life and/or damage to the filter.
SAVE THESE INSTRUCTIONS FOR FUTURE
REFERENCE.
INTRODUCTION
SYSTEM OVERVIEW
EN-3

EN-4EN-4
FLUVAL STATE-OF-THE ART TECHNOLOGY
AquaStop Valve
Fluval’s exclusive AquaStop valve offers unparalleled convenience
and ease of use. It creates an air- and watertight seal that allows you
to disconnect the hosing without breaking the vacuum that keeps
air out of the line. This means you can open the filter cover for
routine maintenance and then start the system up again, with no
need for priming. To stop the flow of water—instantly and
completely—simply lift the AquaStop valve lever all the way up.
During filtration, you can also use the AquaStop valve lever to
regulate water flow, without harming the motor or its components.
Motor
The Fluval motor is hermetically sealed to ensure reliable operation. It requires no coolant and can
be placed in a closed cabinet (where airflow is restricted) with no adverse impact on its performance
or operating lifespan. There are no moving parts, except for the impeller.
Foam Screen Frame
The screen frame contains two thick layers of replaceable foam
blocks to provide a highly efficient initial stage of mechanical
filtration. The large surface area of the foam captures particulate
waste, which will be either be broken down or held. This prevents
clogging of biological and chemical media and enhances overall
filter effectiveness.
Intake Strainer
The intake strainer has a clog-proof, wide-mouth design to
ensure steady rapid siphoning.
Output Nozzle
The output nozzle delivers a continuous flow of purified water.
By disbursing water in a strong, wide flow it creates an agitation
effect that helps break down wastes and keeps them in
suspension until they can be siphoned away by the intake
strainer. The more solids that are kept afloat, the fewer settle, for
cleaner, healthier aquarium surfaces.

EN-5
Media Baskets
Our system of interchangeable media baskets is the key to Fluval’s
flexible filtration system. Multiple modules allow a wide range of
filter media options for maximum versatility. Use the basic filtration
media included, or customize filtration by using your own
combination of media in each basket. Create the configuration
that’s just right for your system. This unparalleled level of flexibility
allows you to perfect your own aquatic environment.
Instant-Prime System
No need for manual siphoning. A simple pumping motion of the
Self-Prime initiates water flow through the check ball that is
incorporated in the intake strainer.
Lift-lock Clamps
Securely lock cover in place. Easy to open.
Rim Connector Assemblies
The innovative rim connector assemblies slide on and snap
together instantly for extra-quick setup. They hold the intake and
output hosing securely in place.
FLUVAL STATE-OF-THE ART TECHNOLOGY

EN-6EN-6EN-6
PUMPING POWER
Flow Rates
Fluval 05 series filters are available in four different models to accommodate aquariums of various
sizes, from the smallest home tank to the largest commercial setup. They offer an outstanding array
of filter choices for the hobbyist and professional aquarist alike.
The key to effective filtration is water circulation. The more water filtered per hour, the cleaner the
aquarium will remain. In addition, water circulation is necessary to continually replenish the supply of
oxygen in your aquarium. The faster a filter can “turn over” an aquarium’s contents (completely
filtering the entire volume of water in the tank), the cleaner and more highly oxygenated the water
will be. Turnover rates are determined by a filter’s volume and its flow rates.
Filter Area
The greater the filter media volume, the greater the mechanical efficiency and biological activity
that will occur in the filtration process. Fluval 05 Series filters have been designed to maximize
canister volume in all four models and to accommodate multiple filter media options, while at
the same time increasing the pathways through the canister to give water more contact time with
the media.
Pumping Power
The more powerful the motor, the faster it can work and the more water it can pump. Each Model
in the Fluval 05 filter series is powered by a motor engineered for top performance, complete
reliability, and maximum efficiency.
Capacity Engineered: Flow Rates, Filter Areas & Power
Model recommendations to provide ideal filtration for aquarium tanks of various sizes:
FLUVAL AQUARIUM PUMP MECHANICAL BIOLOGICAL FILTRATION FILTER MAX. WATER
FILTER CAPACITY OUTPUT AREA VOLUME VOLUME CIRCULATION COLUMN
MODEL * HEIGHT
U.S. Gal/Liters U.S. Gal./Liters Sq. Yds./mm2 U.S. Qt./Liters U.S. Qt./Liters U.S. Gal./Liters Ft./Meters
per hour per hour
105 25/100 125/480 30,666/36,800 1.44/1.37 3.36/3.2 85/330 4.4/1.35
205 40/200 180/680 46,666/56,000 2.10/2.0 4.84/4.6 110/420 4.4/1.35
305 70/300 260/1000 46,666/56,000 3.26/3.1 6.94/6.6 185/710 5.2/1.60
405 100/400 340/1300 63,583/76,300 4.42/4.2 8.94/8.5 225/850 6.7/2.05
*Flow rates were measured with intake and output hoses that were the same length
Filter pump electrical wattages:
FLUVAL 120V/60HZ230-240V/50HZ
FILTER ELECTRICAL SUPPLY ELECTRICAL SUPPLY
MODEL
105 9W 10W
205 9W 10W
305 15W 15W
405 21W 20W

EN-7
INSTALLATION AND USE
IMPORTANT: Read all instructions before beginning.
• For best results, top off water in aquarium before beginning setup.
• Allow 30-45 minutes for setup and installation.
• Tools required: Utility knife. (Note: For an unusually shallow aquarium, the intake tube may need to
be cut; this requires a hacksaw.)
DO NOT PLUG IN FILTER UNTIL SETUP IS COMPLETE AND UNIT IS FILLED WITH WATER.
1. Unpack and identify all parts
Use the diagram on the inside front cover as a guide.
2. Prepare the aquarium
1. Decide on filter placement. Remember, this is a gravity-fed system. For it to work properly,
all the Installation Requirements below must be adhered to.
Installation Requirements
• The canister base must never be more than 4.5 ft. (1.4m)
below the water level.
• Hosing must follow a straight path from the filter to the
aquarium rim, with some slack, but no loops.
• The water level should never be more than 7 in. (17.5 cm)
below your aquarium rim.
• NEVER install the filter above the water level.
• Intake tube should not be positioned in close proximity to
an air source.
2. Place the two rim connector assemblies over the back top
edge of the aquarium. Place one just above the spot where
you want to position the intake tube; place the other just
above the spot where you want to position the output
nozzle. Be sure the longer section of each connector is on
the outside of the aquarium. Attach suction cups to the
outside and inside section of each connector.
IMPORTANT: Be sure to position the intake tube away from
any air source—an air stone, an aeration device, or the
output valve. Air entering the intake strainer will diminish
filter efficiency.
MAX 7 in.
(17.5cm)
MAX 4.5 ft.
(1.4m)

EN-8EN-8
3. Prepare intake connections
1. Attach hosing to the intake connector on the AquaStop
valve; when you hold the AquaStop valve by its silver lock
lever, the input connector will be on your left.
a. Push one end of the hosing onto the valve; push it all
the way, as far as it will go.
b. Turn the lock nut counter clockwise until it is as tight as
you can make it without forcing.
2. Measure and cut the hosing. You will need a length of
hosing that reaches comfortably from the filter canister to
inside the aquarium.
a. Place the AquaStop end of the hosing at the
approximate spot where it will be positioned on the
filter cover once the filter is installed.
b. Stretch out the hosing so it rests over the “intake” rim
connector assembly.
c. At a spot about 4 in. (10 cm) beyond the aquarium rim,
use a utility knife to cut the hosing. Do not cut the
hosing too short.
IMPORTANT: You will want the hosing to be long enough
so that its connection point with the intake assembly is
always about 3 in. (7.5cm) below the water line.
Remember, you can always cut hosing shorter during
final installation, if necessary.
3. Push the cut end of this “intake” hosing into the rubber
connector on the intake tube. Push the hosing in by at least
1 in. (2.5cm) without twisting it.
IMPORTANT
•Hosing must follow a straight path with some slack but
no kinks or loops.
•If the hosing is too long, the filter will not work properly.
•The factory-finished end of the hosing must connect to
the AquaStop valve.
•To ensure a watertight seal, the cut end of the hosing,
which connects to the intake assembly, must be kept
under water.
INSTALLATION AND USE
IN OUT

EN-9
INSTALLATION AND USE
4. Clip the suction cup onto the intake assembly near the
strainer and place the assembly in the tank, making sure
the strainer is at least 3 in. (7.5cm) from the bottom. (If the
tube is too long for the height of your aquarium, remove
the strainer from the intake assembly, cut the tube with a
hacksaw, and then replace the strainer.) Once the intake
assembly is properly positioned, lock it in place by pressing
the suction cups against the glass.
5. Position the top half of the rim connector assembly over
the hosing and push down until it “clicks” to lock the
hosing in place.
4. Prepare output connections
1. The remaining length of hosing will be used for output.
Attach the hosing to the output connector on the right side
of the AquaStop valve’s silver lock lever.
a. Push the factory-finished end of the hosing onto the
valve; push it all the way, as far as it will go.
b. Turn the lock nut counter clockwise until it is as tight as
you can make it without forcing.
2. Measure and cut the hosing. Again, you will need a length
of hosing that reaches comfortably from the filter canister
to inside the aquarium.
a. Place the AquaStop valve end of the hosing at the
approximate spot where it will be positioned on the
filter cover once the filter is installed.
b. Stretch out the hosing so it rests over the “output” rim
connector assembly.
c. At a spot about 4 in. (10cm) beyond the aquarium rim,
use a utility knife to cut the hose. Do not cut the hose
too short. Remember, you can always cut it shorter
during final installation, if necessary.
IMPORTANT: Remember, to maintain a watertight seal,
the connection point between the hosing and the
output nozzle should be kept below the water line.
"click
tolock"

EN-10EN-10
3. Push the cut end of this “output” hosing into the rubber
connector at the top of the output nozzle assembly. Push
the hosing in by at least 1 in. (2.5cm) without twisting it.
4. Place the output nozzle in the tank about 3 in. (7.5 cm)
below the water line; then push the top half of the rim
connector assembly down until it “clicks” to lock the hosing
in place.
5. Prepare the Filter
IMPORTANT: The Carbon and BioMax media supplied with your Fluval filter have been
deliberately placed in Upper, Mid, and Lower level baskets to indicate their recommended
placement for optimal basic filtration. Be sure to note this positioning and place media in baskets
at the same levels as you prepare the filter for use.
1. Remove the foam screen frame, media cover, and media
baskets from the filter canister. As you remove Carbon and
BioMax from baskets, note which levels they were packed in.
Then remove their outer wrappers; do not remove carbon from
porous bag(s).
2. Rinse baskets and media materials under running tap
water to remove any dust, and place media in baskets. Or,
if you prefer, select other media of your own choosing.
(See “Fluval Advanced Filtration” for
more information.)
3. Place rinsed and filled media baskets back in canister, and
put the media cover back on top basket.
IMPORTANT: Make certain that each kind of media is
positioned at the same level it was packaged in, unless you
are deliberately choosing a different filtration plan than the
recommended basic setup. Never overfill baskets. If baskets or
cover are out of position, cover may not close properly.
INSTALLATION AND USE
"click
tolock"

EN-11
4. Rinse both sides of the foam screen frame under tap water before initial use to remove any
possible contaminants, and slide it back into position in the canister, flat end down. If the
screen does not seem to fit properly, be sure it is not upside down.
5. Complete canister cover assembly:
a. Lay the canister cover on a flat surface with its topside
down. Remove the lubricated rubber gasket from its
plastic bag. To seal the cover opening properly, the
gasket must be moist but it need not be wet. Carefully fit
the gasket into the channel around the base of the cover.
b. Position the impeller cover over the impeller. Align the
shaft so it is seated in the ring on the cover; push down
around the entire circumference of the edge until the
tabs “click” into locked position.
6. Place the cover on the canister. Be sure to position it
properly. There is only one orientation possible. Make
certain that the MSF logo on the cover and canister is
aligned and that the power cord fits into the notch on the
rim of the canister.
7. Lock the cover in place: push the double tabs of the lift-lock
clamps under the rim; then press the upper tabs firmly
against the cover.
DO NOT FILL CANISTER WITH WATER
8. Place the unit in its final position.
IMPORTANT REMINDERS:
•This is a gravity-fed system. For it to work properly, the filter must be positioned below
the aquarium.
•The distance between the bottom of the canister and the maximum water level must not
exceed 4.5 ft. (1.4m).
•Hosing must follow a straight path from the filter to the aquarium rim, with some slack,
but no loops.
•If hosing is too long, filter will not work properly.
•The water level should never be more than 7 in. (17.5cm) below your aquarium rim.
•NEVER install the filter above the water level.
INSTALLATION AND USE
FLU VA L
FL U VA L
FL U VA L

EN-12EN-12
INSTALLATION AND USE
9. Insert the AquaStop valve into the intake and output
connectors on the cover, and push down on the silver
lever to lock it in place.
10. Open the AquaStop valve by pushing the black lever, all
the way down. (The valves must be fully open before the
unit is turned on or primed.)
6. Start the filter
1. Check your installation.
a. Be sure lift-lock clamps are securely closed.
b.Make certain that the AquaStop valve is fully open
(with the black lever all the way down.)
c. Check to see that the intake assembly and output nozzle
are both fully submersed in water.
2. Pump the instant-prime handle by pulling it up and pushing
it down vigorously, several times, until you hear water being
drawn into the unit. Return the Instant Prime handle to the
down position. As water flows through the intake hosing, it
will fill the canister, pushing air out of its way. Air will be
expelled through the output nozzle, causing the water in
the aquarium to bubble. To expel all the air in the system as
quickly possible, the AquaStop valve must be fully open: be
sure the black lever is all the way down.
a
b
c
c

EN-13
INSTALLATION AND USE
3. Once the bubbling in the tank stops, you’ll know the air is out of the system, and the canister
is full; plug the power cord into an electrical outlet.
THE PUMP WILL START IMMEDIATELY.
Water should flow from the output nozzle continuously. If it does not, check your installation
to be sure of the following:
•No kinks or loops in the hosing.
•The base of the canister is not more than 4.5 ft. (1.4m) below the water level.
•The water is not more than 7 in. (17.5cm) below the aquarium rim.
•The intake assembly is securely attached to the aquarium wall..
•No air is bubbling into the water at points where the intake assembly and the output nozzle
connect to the hosing.
•No water is escaping from the hosing at the AquaStop valve connection points.
•The canister cover is securely closed.
•The black and silver levers on the AquaStop valve are both pushed all the way down.
Continue pumping the instant-prime handle until the unit starts to run on its own.
IMPORTANT: To prevent damage:
•Never plug the filter in unless the canister is completely full of water.
Adjusting Water Flow
Once the filter is operating continuously, you can use the black lever on the AquaStop valve to
regulate the water flow. To reduce the water flow, lift the lever up to halfway, but no higher. This
can be done once the unit is fully operational, and will not harm the motor. However, never run the
filter with the black lever up (closed) more than half way.
Air in the Filter
Some air will become trapped in the canister as it fills; air may also be released by new media.
Eventually, the filter will expel all air pockets. If you notice excessive bursts of bubbling over an
extended period of time, check all hosing and connections for air leaks. Also, make sure there is no
air source (such as an airstone or aeration device) near the intake strainer.

EN-14
There are three basic types of filtration.
Mechanical filters remove waste particles and
solid debris through various kinds of strainers.
Biological filters break down and eliminate
organic toxins—ammonia and nitrite —through
bacterial action. And chemical filters actively
change water characteristics through
deliberately managed chemical reactions.
Fluval offers a wide variety of filter materials.
Some perform more than one job. The true
power of the Fluval system is the flexibility
offered by wide range of media available and
multiple options for media placement.
The Fluval Stack of Media Baskets
The stack of media baskets in the Fluval 05
series filters enables you to employ all
three types of filtration in whatever
configuration or sequence you
determine is best to meet the needs of
your aquarium environment.
Filtration always begins with a
mechanical stage of waste particle
removal as water flows through the
foam screen, and continues with
subsequent biological and chemical
stages as it flows up through the
media in the baskets.
Because you can use the media of
your choosing at each level, you will
be able to design a system that
provides additional mechanical filtration
if you wish. Below you’ll find detailed
information, as well as general guidelines for
media selection and use.
General Guidelines
•Location can determine function; For example,
Carbon can act primarily as a screen for debris
or act more as an environment for growth of
beneficial bacteria, depending on where it is
placed in the filtration sequence.
•Proper preparation is key: Some materials,
such as Ammonia Remover, require thorough
rinsing so that their finest particles do not clog
other modules or discharge into the aquarium.
For best results and the protection of your
fish, always read and follow the preparation
instructions for the media you are using.
•Use mechanical filter media in the first stage
of filtration: This helps ensure that the water
will be as free of debris as possible when it
flows through biological and/or chemical
filters, which require clear water for maximum
effectiveness. The foam screen is an effective
first stage mechanical sieve.
•Protect biological media from debris:
Biological media provide clean, hard
attachment points for beneficial bacteria. For
these media to be most effective, they
need a constant stream of waste-
free water that carries ammonia,
nitrite and oxygen. Thus, they are
best placed after mechan-ical
filtration and chemical media.
Lower Level Basket
Media that continues the
mechanical capture of small
particles should be placed in the
lowest media basket, to purify water
and/or remove particles before they
can clog delicate pores of biological
or chemical substrates. Pre-Filter,
Carbon, and Zeo-Carb are all options for
screening small particles from the water. Pre-
Filter is inert, acting solely to create a screen.
Carbon removes dyes, medications, and
solubilized wastes that a simple screen cannot.
Zeo-Carb removes ammonia; it is often used in
beginning setups to keep initial ammonia spikes
lower than would occur naturally.
Mid Level Basket(s)
The mid level media basket is useful for
chemically modifying water. Peat Granules,
FLUVAL ADVANCED FILTRATION

EN-15
for example will gradually lower the water’s pH level. The mid level basket is a good place to begin
the biological reduction process, as well. Many media types provide both mechanical filtering and
biological treatment, creating an excellent environment for beneficial bacteria to proliferate. Even
many chemical compounds will support colonies of bacteria. With the primary mechanical
purification of the water stream occurring in the Foam Screen Frame and the lower basket, it is
typical to load additional biological media into a Mid Level Media Basket. BioMax, extra Carbon, or
Ammonia Remover are commonly used. This is also the place where more exotic media, chosen for a
specific application, can be used.
Upper Level Basket
This basket receives the purest water stream, making it the proper place for dedicated biological
media. Placed here, BioMax, for example, provides optimal biological power in a very compact ring
configuration. With a multitude of pores perforating both the surface and the internal matrix, it is
an ideal substrate for this position, especially because it has a built-in trap to capture any loose
strands that might affect the operation of the impeller..
Ammonia Remover ( Mid or Lower Level, Media Baskets)
A-1480 (3-pk., 180g ea.)
A-1485 (700g)
A1486 (1400g)
A-1487 (2500g)
Fluval Ammonia Remover is a natural ion-exchange media designed to remove toxic
ammonia as water passes over it. Controlling ammonia levels reduces stress on fish. Use
this product to provide a healthy environment when setting up a new aquarium or
maintaining one that contains a higher than average fish stock.
Ammonia Remover gradually becomes inactive. Replace regularly, at least once a month.
For freshwater use only.
BioMax (Upper Media Baskets)
A-1456 (500g)
Fluval BioMax ceramic rings have a complex pore system where beneficial bacteria can
thrive. With more capacity than most biological filter media, BioMax helps reduce
ammonia and nitrite. Plus, the rings allow ideal water movement throughout the
media, to ensure optimal contact time for efficient biological filtration.
Replace BioMax every 3 months.
IMPORTANT: Replenish only half at one time to allow proper seeding from
older media to new.
For freshwater and marine environments.
FLUVAL FILTER MEDIA

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Carbon ( Mid, or Lower Level Media Baskets)
A-1440 (3-pk., nylon bags, 100g ea.)
A1445 (375g)
A1447 (900g)
A-1448 (1650g)
Fluval Carbon—a premium, research grade, low-ash carbon—improves water clarity and
color, while also removing odors. Highly porous, it provides large amounts of surface
area for adsorption of impurities. It effectively removes heavy metals, odors,
discolorations, organic contaminants, and pollutants to leave your aquarium water
crystal clear and sparkling. This product does not release phosphates.
Carbon loses its activity without outward sign. Replace monthly to ensure that active
adsorption is maintained.
Carbon should always be removed when medication is being administered in aquarium
water. Also, because carbon will adsorb a large percentage of the nutrients in plant
fertilizer products, it should be used carefully when keeping live plants.
For freshwater and marine environments.
Foam Inserts (For Foam Screen)
A220 (2-pk, for 105)
A222 (2-pk, for 205, 305)
A226 (2-pk, for 405)
Fluval Foam Inserts capture large particles for effective mechanical filtration, the crucial
first stage in the filtration process. Custom fit to prevent bypass, they have a pore size
that allows efficient water flow with less clogging for long-lasting filtration. These
inserts also enhance biological filtration.
For freshwater and marine environments.
Peat Granules ( Mid Media Baskets)
A1465 (725g)
Fluval Peat Granules are the all-natural way to soften aquarium water and achieve the
pH levels required for breeding and rearing certain tropical fish. Peat contains humic
acid, tanning agents, and trace elements that are essential for various life processes.
Highly concentrated for maximum effectiveness, this product is recommended for fish
that prefer soft, acidic water.
To ensure optimal conditions, it’s best to test with Nutrafin pH and KH test kits on a
regular basis to verify that desired levels are being maintained. A KH range of 50-120
mg/L (approximately 3-7 dKH) is usually recommended for fish that thrive in soft, acidic
water. (Use Nutrafin pH Stabilizer for superior results in maintaining an optimal KH value.)
Replace when pH and KH levels begin to diminish.
For freshwater use only.

Polishing Pad (Upper Media Basket)
A-242 (105, 205)
A-244 (305, 405)
Fluval Polishing Pads are uniquely designed to fit Fluval canister filters. These extra
thick polyester pads capture small particles that cloud the aquarium, to leave the water
in your tank crystal clear.
For freshwater and marine environments.
Zeo-Carb ( Mid, or Lower Level Media Baskets)
A-1490 (3-pk, 150g)
A-1492 (1200g)
A-1493 (2100g)
Fluval Zeo-Carb is a premium blend of Fluval Carbon and Fluval Ammonia Remover.
Working together, these highly effective media eliminate liquefied impurities, odors,
and discoloration, while, at the same time, removing toxic ammonia, for a clean,
healthy aquarium. Combining two products into one gives you more space in your filter
system for other types of media.
Replace once a month, more often if aquarium is heavily populated.
Remove when medication is being administered in aquarium water. Use carefully when
keeping live plants.
For freshwater use only.
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WARNING: ALWAYS DISCONNECT ALL APPLIANCES IN THE AQUARIUM FROM THE ELECTRICAL SUPPLY
BEFORE PLACING HANDS IN THE WATER, BEFORE PUTTING ON OR TAKING OFF PARTS, AND WHENEVER
THE FILTER EQUIPMENT IS BEING INSTALLED, MAINTAINED OR HANDLED.
Media Care
Filter Media must be periodically replaced or cleaned in accordance with instructions on individual
packages. Actual life span of any type of media will vary based on usage and the specific
characteristics of each aquarium. To remove and replace media, follow the instructions below.
IMPORTANT: Never replace all media at the same time. Stagger filter media changes so that some
older media remains in use. This ensures re-seeding of beneficial bacteria, so that colonies discarded
with old media will be replaced by vigorous new ones. To enhance bacterial action, use Nutrafin
Cycle Biological Aquarium Supplement each time you change the media. All rubber parts; cover
gasket, primer stem, AquaStop Valve and seal rings should be periodically lubricated .
1. Drain the filter
1. Close the AquaStop valve by lifting the black lever all the way up. This seals off the input and
output hosing connections to maintain the vacuum that is necessary in order to restart the filter
without priming.
2. Unplug the power cord.
3. Lift the silver lock lever to release the AquaStop valve.
It is not necessary to remove the hosing from the AquaStop valve unless the hosing, the
AquaStop valve, or both require cleaning. (Periodic cleaning is recommended to ensure optimal
water flow. A good time to do this is during a major water change. To clean, rinse under
running tap water; if necessary use an appropriate Fluval Cleaning brush.)
4. Hold the unit by the canister, not the cover, and move it to an appropriate flat surface near a
sink or other drain. (Be sure to keep it upright to avoid spills.)
5. Release the lift-lock clamps; then push down on clamps to lift the cover/pump housing off the
canister and set it aside.
6. Holding the media cover in place, tilt the canister over the sink or drain, and pour out as much
water as possible.
7. Media and foam screen will be saturated with water. If your sink is not large enough to hold
them, have appropriate bucket nearby. Lift the foam screen, media cover, and media baskets
out of the canister and place them in your sink or bucket.
8. Rinse the interior of the canister with clear water. NEVER use soap or detergents when cleaning
canister or rinsing foam screen or media baskets. Traces of cleaning products may remain on
surfaces and damage sensitive fish tissues.

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MAINTENANCE
2. Clean or replace media
1. Replace chemical media, as needed. Chemical media cannot be cleaned.
2. Rinse biological media with aquarium water, never tap water, or replace as required. Never
replace all biological media at one time, as valuable colonies of beneficial bacteria would be
lost.
3. Whether reusing or replacing foam, rinse both screen and foam under running tap water. For
the most thorough cleaning possible: slide the foam out of the screen frame and rinse each
piece separately; rinse and wipe the screen; then reassemble. Be sure that the foam is
protruding from the top of the screen. Rinse any other mechanical media also. NEVER use soap
or detergents on foam or screen, as traces of cleaning products could harm fish.
3. Reassemble unit
DO NOT FILL CANISTER WITH WATER WHEN RE-ASSEMBLING UNIT
1. Place rinsed and filled media baskets back in canister, and put cover back on top basket.
2. Replace foam screen in canister. (Insert with flat end down.)
3. Inspect and lubricate Gasket as needed.
4. Replace the cover, making certain the MSF logo and power cord are properly aligned.
5. Use the lock-lift clamps to close the cover securely.
6. Place the unit back in position; re-insert the AquaStop valve, and push down the silver lever to
lock it in place.
7. Push down on the black lever to open the AquaStop valve. Water should start flowing
immediately. Important: If the hosing has been disconnected from the AquaStop valve, or if the
system has lost its vacuum for some other reason, the canister will not fill automatically. Use the
instant-prime handle to fill the canister
8. Allow the canister to fill completely, then plug the power cord back into the electrical outlet.
IMPORTANT: If the canister is not full before the filter is plugged in, it may not work properly.
The filter unit should never be allowed to run dry. Running the unit dry may result in damage
to the motor.

Impeller Care
The impeller well has an effective self-cleaning feature. However, it is a recommended that you
remove the impeller cover and inspect the impeller as part of your routine maintenance. Keeping
the impeller clean lengthens its life and the life of the motor.
IMPORTANT: The impeller fan has a ceramic shaft, which is resistant to wear and tear in use, but is
still fragile. Handle carefully during maintenance.
1. Remove the impeller cover: squeeze the two tabs, and lift off.
2. If the impeller needs cleaning, grasp the fan and draw it gently from the well. Rinse it under
clean water.
3. If the well needs cleaning, wipe gently with a Fluval Cleaning Brush.
4. Replace the impeller in the well:
a. Align the shaft so it is seated in the ring on the cover, and press the cover into place.
b. Slide the tabs outward until they “click” to indicate the cover is locked in position.
Models 105 and 205 only:
WARNING: The yellow ceramic impeller shaft is permanently
attached to plastic holder and is brittle to lateral pressure. Take
extreme care when handling the impeller.
Do not remove the ceramic shaft assembly unless it breaks. If
you should need to remove it: Insert the ceramic shaft tool until
you feel it engage at the base of the shaft, then pull up gently.
To replace, position a new magnetic impeller on the assembly,
and insert into impeller well; push on impeller fan until the
assembly locks into place.
Models 305 and 405 only:
The ceramic impeller shaft is held on the bottom of the impeller
well by a rubber support. The shaft can be easily extracted and
reinserted by hand; however, pay close attention to be certain
the rubber support does not become unseated. (Always replace
the impeller cover to ensure proper alignment).
The Impeller will wear out over time. A replacement may be ordered
from your local Fluval dealer or by contacting Customer Service at
Rolf C. Hagen Corp.
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