Right now i just put in my sponge filter in my 2 yrs 60g tank to get my sponge filter ready to transfer to my soon to be 10 gal fry tank. Now my question is how long it takes for the sponge filter ready to go in ? (enough BB)
I usually leave them in for a week, then set up the fry tank. never had any problems. Keep in mind I change a lot of water in my fry tanks for the first week or so.
