CleverBs
Aquarium Advice Addict
Ok so here's the deal. I got a sponge filter today for my 29 gallon QT/fry tank. I put it in my 75 with a powerhead on it to build up bb so that my 29 will cycle quickly. How long should I keep it in my 75 to insure there is a build up of BB. 2nd question is how large of an air pump do I need for it?