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Pre Filter Sponge

Regular price: $4.99
Sale price: $4.99
Regular price
Unit price: per

Quantity:

Quantity must be 1 or more

Prevents small animals and debris from getting sucked up
Increases filter capacity
Uses coarse foam to extend time between cleaning

The pre-filter or intake sponge is a simple foam cylinder that is designed to slip over the intake tube of hang-on-back (HOB) and canister filters. The filter intake tube often has large openings, so use a pre filter sponge to prevent fish, shrimp, and sizable debris from getting sucked up and ruining the filter motor. Not only does an intake sponge clear up your water, but it also provides valuable surface area to grow beneficial bacteria.

Find out which sponge size to get and how to properly fit it to your hang-on-back or canister filter intake by viewing the Sizing Chart and Video below. (Click the "Show More" button to expand the Directions/Specifications section.)

1

Increased Filter Efficiency

Increase the capacity of your filtration. A pre filter sponge provides valuable surface area to grow beneficial bacteria, which purify waste chemicals in the water and make it safe for your fish to live in. It also adds mechanical filtration that keeps bulk debris from clogging your finer filter pads and extends the life and efficiency of your filter media.

2

Prevent Fish, Snails, and Food From Being Sucked Up

The filter intake tube often has large openings that allow sizable objects to get sucked up by the filter, potentially ruining the motor, so use a pre-filter sponge to help prevent baby fish, long-finned fish, dwarf shrimp, snails, plant leaves, fish food, and other debris from entering the filter.

3

Easy To Clean and Reusable

Put a ziploc bag around your pre filter sponge when you remove it from the aquarium. Squeeze it until the water turns brown. Dump the dirty water on your favorite houseplant. Then get another bag of water and repeat until clean. Afterwards, place it back on your filter's intake. This reusable, re-washable prefilter will last you many years.

4

Proper Fitment

In general, a larger pre-filter sponge is always better because it gives you more time between cleanings and increases your filtration capacity. Use a zip tie or O-ring on the filter intake tube when you need a snug friction fit to keep the sponge from falling off, as shown in the picture. A rubber o-ring can be found at hardware stores or Amazon.

small_4_panel_filter_intakes_update_fluval

5

Fits Most Filters

Most hang-on-back and canister filters can be fitted with a pre filter sponge. With some filters like the Fluval 409 series, it slides right over the intake and is a direct fit. With other filters like the Fluval FX series, you must remove the intake screen or basket and use an o-ring or zip tie. See the Sizing Chart in this page's Directions/Specifications section to pick the right pre-filter sponge for your filter.

Pre Filter Sponge (Mini)

Regular price: $4.99
Sale price: $4.99
Regular price
Unit price: per

Qty

Awesome!

Honestly; fast shippin and i don’t know if it’s placebo but I feel that my tank is runnin better and parameters are much more balanced.

Sponge

It's a prefilter sponge that does prefilter sponge things... I use one of them at the end of my water change hoses and my first one lasted about 4 years(mainly because the turtles would chew on it sometimes)...! Another great product...! Keep up y'alls awesomeness...!!!

3 for 1

I have four HOB filters and run ACO prefilter sponges on every intake. So many of us use actual sponge filters simply because they work so well. I have one in my 14 gallon cube shrimp tank and it's fantastic. But on my larger tanks, I prefer to run Tidal 110s. Using a prefilter sponge helps keep major debris out of the impeller as any good mechanical filter should. The sponge also becomes a biological filter as it ages and becomes home to bacteria. Then of course it protects smaller or weak inhabitants from being pulled into the pump. And for anyone who buys the new Tidal optimizers, the ACO prefilter fits perfectly! I'll actually be ordering more on my next order - along with other stuff because you can't just buy one thing hahaha. Enjoy!

Pre filter

These pre filters keep my Aquarium clear, and clean

Fit perfectly on my PF10 5 gallon intake.

Frequently Asked Questions

Shipping Policy

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90 Day Return Policy

90 Day Return Policy

At Aquarium Co-Op, our goal is to have satisfied customers. We make every effort to inform our customers about how our products work, and what is  to be expected. We recognize that sometimes a product may not completely  meet the expectations of a customer. We take pride in having a  no-hassle 90 day return policy. If you have purchased an item and are not  satisfied, we will take it back.

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Aquarium Co-Op
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