CleverBs
Aquarium Advice Addict
I am starting up 2 tanks a 40gallon and a 29 gallon, They will both be using sponge filters and of right now I have the filters in my 75 gallon seeding BB. My question is how long should I leave the filters in the tank? also the filters are running not just floating. My goal is to be able to just toss them in my other 2 tanks and have them be cycled.