A Hydro Sponge I -V (Back to product)

Home » Odds and Ends   A Hydro Sponge I -V Hydro sponges in five sizes> Great filter to help establish a tank. Insert a new filter in an existing tank, after a several weeks move to a newly established tank to assist in biological filtration 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 waste particles mechanically cleaning the water without trapping the baby fish. Sizes: Hydro Sponge I for tanks up to 10 gallons – Price $7.50 Hydro Sponge II for tanks up to 20 gallons – Price $8.30 Hydro Sponge III for tanks up to 40 gallons – Price $8.90 Hydro Sponge IV for tanks up to 80 gallons – Price $9.90 Hydro Sponge V for tanks up to 125 gallons – Price $10.60   Select Hydro Sponge Size: Please Select...Hydro Sponge I Hydro Sponge II (+$1.80) Hydro Sponge III (+$2.40) Hydro Sponge IV (+$4.40) Hydro Sponge V (+$4.10) Email Friend List Price: $9.99 Price: $7.50   « Previous | Next »