Hydro-Sponge 3 Filter

The Hydro-Sponge filter provides both Mechanical and biological filtration. Aerobic bacteria colonize the sponge, providing a bacterial substrate to facilitate the nitrogen cycle. In addition, the Hydro sponge traps larger waste particles, mechanically cleaning the water. All Hydro-Sponge filters are designed for stack-ability to increase the filtering capacity. Very easy to clean, just rinse and squeeze!

 

Customer Reviews

Based on 111 reviews
96%
(107)
3%
(3)
1%
(1)
0%
(0)
0%
(0)
E
E.B.
Sponge succes

Like them very much, I’ll be getting more when available

A
A.J.
Hydro Sponge 3

Awesome product, made so you can use a air stone and not have to modify like you do with other products, Thank You Aquarium Co-Op

S
S.
Great product

I am very satisfied with Aquarium Co-Op. They offer quality products at great prices and extremely fast shipping.

J
J.G.
Great Filter

Does exactly as intended, using as extra filter in my 55 gallon, keeps water clean and helps with flow

B
B.A.
Combined with a smaller filter

In tandem with a 204 canister (with an intake sponge), I have had no problems in my 75 gallon tank over the past ~year. Couldn't be happier.

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