tropicfishman
Aquarium Advice Addict
I have a 10 gallon tank and the LFS gave me 3 large blue bio balls brand new just to be nice, I put one in the filter itself and 2 are floating in the tank. I was wondering how long it took you guys and gals to get your bio balls started on growing bacteria and where you have yours located, such as the filter, floating, etc. If you put yours in a HOB type filter, where in the filter did you put yours, I put mine right where the water exits behind the filter cartridge and on top of my C- 100 ammonia remover bag.