Fw bio sponge

[Blueangel4730]

Can someone tell me exactly what they are for and what is needed for install and operation. Google has not helped much

 

[librarygirl]

Do you mean these? Aquarium Sponge Filters at AquariumGuys.com

 

[CleverBs]

Well a bio sponge filter is used as biological filtration. I use them in breeding tanks without anything but water and fish in them. They hook up to a powerhead and filter water along with adding water movement.

 

[Alex55-20]

You can also hook it up to an air pump