American Aquarium Products

Filter Max Aquarium Sponge Pre Filters;
For improved bio filtration, improved aquarium filter efficiency (especially HOB filters). These Sponge pre-filters prevent fry, debris, and other material from being trapped in an aquarium filter intake and increase filter intake depth

     
 

FILTER MAX; PRE FILTER



• Prevents debris such as dead fish and plant material from clogging the intake by distributing suction evenly down the length of the sponge.
• Maintains the biological filtration when the main filter is changed or cleaned.
• Vastly increases bio filtration capacity over many standard Aquarium Power Filters (HOB filters).
• Can be used with most power heads as a temporary or permanent filter in aquariums, isolation tanks, holding tanks, etc.
• Prevents small or baby fish from being suctioned into the main filter
• Prevents anemone and invertebrates from being suctioned into the filter.
• Traps larger waste particles, mechanically cleaning the water
• Can be used with most outside filters, canister filters and power heads.
• Increases depth of HOB filter intake by up to 6 inches (15 cm.) for better over all circulation (it is still recommended to have more than one independent filter or at least a separate air stone for best over all filtration results) .
• Includes three adapters for use with various main filter intake tubes.
• Easy to clean. Just rinse and squeeze in used tank water
• Can be used in the vertical or horizontal position.
• Available in three sizes
Aquarium Pre Filter in tank• A must for HOB (hang on back power filters), such as Via Aqua, Penguin (older models), ReSun, Aqueon or Whisper (or most others with “round” intake). These pre-filters retain and improve biological filtration even when HOB filter media is changed. These pre filters also extend intervals between filter cartridge changes, saving money (and contrary to some opinions, improves the efficiency of cartridges by removing more coarse debris before entering the filter, thus allowing the cartridge to remove more fine debris)
• Excellent to use with CO2 generators to better diffuse CO2 into the aquarium (you use these filters to diffuse the CO2 bubbles into the aquarium)

(Click on pictures for a larger view.
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Pre filter *Filter-Max I:
Sponge size 2 inches by 2.75 inches
Tank size: up to 20 gallon
Surface area: 30.6 sq. in.
Price: $5.49





Pre filter *Filter-Max II:
Sponge size 4 inches by 2.75 inches
Tank size: up to 40 gallon
Surface area: 49.4 sq. in.
Price: $6.49





Pre filter *Filter-Max III:
Sponge size 4 inches by 2.75 in
Tank size: over 40 gallon
Surface area: 49.4 sq. in.
(Note: the Filter Max #3 differs from the #2 not in sponge size, but in design, allowing a higher flow rate)
Price: $6.99





* #1 Replacement Sponge (fits #1 Filter-Max)- $1.49

• #2 Replacement Sponge (fits #2 Filter-Max)- $1.99

• #3 Replacement Sponge (fits #3 Filter-Max, same size as the #2, however designed for a higher flow rate)- $2.89

• Set of TWO Filter Max Elbows- $2.29

• End Cap for Filter Max- $1.29

• Set of Three Replacement Adapters- $2.29


The Filter Max Adapts to most all round intakes (& Teflon tape can be used to make a more snug fit on less tight connections), here are the sizes of the adapters:

• 1-1/4” OD. 1-1/4” ID
• 1-1/8” OD, 1” ID
• 5/8” OD, ½” ID
• 7/8” OD, Ύ” ID

All adapters can be connected to either the outside or the inside of the intake pipe for your filter, whatever works best.

Note:
There is not one round intake that I personally have not been able to connect a Filter Max together with, and I even once (with much modification and Teflon tape), connected a Filter Max to a square intake on an Emperor filter (please do not purchase a Filter Max thinking this will be a simple modification to adapt it to a square filter intake)


Compare our low shipping charges to other sites selling Filter Max/ Hydro Sponge Filters, our shipping starts at only $6.95!

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Pre filter with power head pumpA Filter Max can also be mounted to a power filter such as the Via Aqua 1300 pump shown in this diagram/picture to the left using the part that are provided by both the Filter Max and VA 1300 (a Filter Max #3 is recommended, although the #2 can work as well).
This application works well for using your Pump to other filters such a converted pond filter.
(Click to enlarge the picture)

Hydro Sponge Aquarium FiltersHydro Sponge Filters for Aquariums For our Hydro Sponge filter page, please follow this link:




For much more information including a diagram of an air pump/sponge filter set up and lift tube circulation patterns; please visit this Article:
SPONGE FILTRATION


HOB Filter with Filter Max Pre FilterDiagram with M-200 attached to Filter Max Pre-Filter

This picture shows a Via Aqua M-200 HOB Filter with the surface skimmer attached to a FM #3 (or #2) as well as the sub-picture to the lower right showing the parts used.
The sub-picture in the upper right shows the Filter Max attached without the Skimmer attachment.

Please click on the pictures to enlarge for a better view.

Sometimes parts cannot always fit as snug as we would prefer with the many different filters available to adapt to (although sometimes the water pressure from a running filter will allow for a tighter fit). In these cases, simply adding a bit of teflon tape (or any tape, but teflon works the best) around the piece in question will provide a more snug fit.

See this picture below for teflon tape example:
teflon tape on Filter Max part



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