Hydro Sponge Aquarium Filters
Other products by Aquarium Technology

Item #: FT-HS9
Our Price: $6.95
Please Select Filter Size  
Availability: In Stock

The Hydro Sponge filters 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 without trapping the baby fish.

Five Sizes Available:
- Hydro Sponge I, up to 10 gal.
- Hydro Sponge II, up to 20 gal.
- Hydro Sponge III, up to 30 gal.
- Hydro Sponge IV, up to 80 gal.
- Hydro Sponge V, up to 120 gal.

Click HERE for Replacement Sponges


Average Rating:
(based on 9 reviews)

Showing 1 - 5 of 9 Reviews:

by sally
on 11/14/2011
Great product.
I use sponge filters on my QT tank. I was in a hurry a while back and had to buy one that was too small for the job, so this is the replacement. These are easy to use, but because I don't like to clean a filter every week my main filter is an Eheim canister. However, I know people that use these as their main filter and they just are a neat little filter.
by Crazyangels
on 8/15/2010
Really great product
This filter really does a fine job of clearing the water.
by elizabeth
on 7/20/2009
Excellent!!! A must buy for all!! Works better than an expensive filter, and keeps all my tanks crystal clear, and clean!!
by spike
on 5/1/2009
Hydro Sponge III, up to 30 gal.
I bought two of these to help out in my 37g and 29g tanks and they are great. They really help with my ammonia/nitrite levels.
by bbbthebest
on 4/22/2009
had running in 75 for a couple weeks to get the bacteria built up put the filter in a 10 and the tank was good to go!
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