Hydro V Sponge Pro Filter - Up to 125 gal.
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For more info on Sponge Filtration, please see Sponge Aquarium Filter Basics.
|Max Tank Size
Ratings & Reviews
by Jim Ryan
Super easy to set up & use. Very effective! For the money, sponge filters are the way to go!
Great in Ponds
by 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.
by 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.