[typically]

I just got a eheim classic and installed it on my 10 gallon. Should i leave my AC in the tank until the eheim gets bacteria growing in it? The tank
has been running for about 3 months now. It doesn't really bother me having it in the tank still but it would be nice to get rid of it =]

 

[epicfish]

Leave it for a few days....or better yet, remove the media from the AC and put it into the Eheim.