Now including the NEW ATI Base! Prefilled with substrate.

Filtration for the modern aquarium
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.

- Hydro Sponge Mini, up to 10 gal.
- Hydro Sponge I, up to 15 gal.
- Hydro Sponge II, up to 30 gal.
- Hydro Sponge III, up to 40 gal.
- Hydro Sponge IV, up to 80 gal.
- Hydro Sponge V, up to 120 gal.

Sponge Sizes:

SPONGE Mini Size: 2.25" H x 2.75" W
SPONGE #1 Size: 2.25" H x 3.75" W
SPONGE #2 Size: 4.25" H x 2.75" W
SPONGE #3 Size: 4.25" H x 3.75" W
SPONGE #4 Size: 4.5" H x 4.5"
SPONGE #5 Size: 4.5" H x 5.25"

Fine Filter 30 PPI
Coarse Filter 10 PPI

All Hydro Sponge filters are designed for stackablity to increase filtering capacity.

Can be used with an airstone or our air diffuser

Can be used with a power head water pump or air pump

Maintenance
Rinse the sponge with cool running water weekly. Do not use hot or cold water as this will destroy the bacteria which colonize the sponge.
Do not use soap or detergent when rinsing the sponge

ATI Hydro Sponge Filter Pro Coarse

ATI Hydro Sponge Filter Pro Coarse