Hydro V Sponge Pro Filter - Up to 125 gal.
Item # 248272 / Manufacturer Part # HSP950
Hydro-Sponge V Pro filters provide both mechanical and biological filtration. The Pro line is constructed of reticulated foam which doubles its efficiency. Aerobic bacteria colonize the sponge providing a bacterial substance to facilitate the nitrogen cycle. In addition, the Hydro-Sponge traps larger waste particles mechanically cleaning the water without trapping baby fish. Other sponge filters can't compare to the amount of water the Hydro Sponge can move with the one inch diameter lift tube. The sponge is held on a heavy base to keep the unit stable and the raised sponge design prevents dead space beneath. Ideal for use in hatcheries and breeding facilities. Hydro-Sponge filters can be operated with either and air pump and stone, or a suitable powerhead. The Hydro V is rated for aquariums up to 125 gallons.
For more info on Sponge Filtration, please see Sponge Aquarium Filter Basics.
They float! 6/9/2015
Reviewer: Joe Mon
Once they get working and get algae in them the gasses given off get trapped in the sponge and float them up to water's surface. They are useless there. Will have to silicone rocks to the base I guess.
Great in Ponds 7/16/2013
Reviewer: Larry Wester
I have been using these in my koi ponds for the past 26 years. Their primary use is to provide oxygen in the winter and keep the ponds from freezing over solid.
Great Filter 2/11/2013
Reviewer: Jim Ryan
Super easy to set up & use. Very effective! For the money, sponge filters are the way to go!