juliethegr8t
Addicted and in Therapy
Sorry to bring this up again, but I never got a clear enough answer to apply to my own situation. As most of you know, I have a newly cycled tank. It took over a month to do this, I'm not sure exactly how long. However, the information for my filter says to change the cartridges monthly. They do contain carbon, and I don't know if this matters or not. Anyway, I realize the carbon can put bad things back in the water once full (heck if I know how long it takes to get full), but I also don't want to get rid of all the good bacteria growing in my cartridge (in the floss I assume) by removing it. How long should I wait before putting in a new one? Any help is appreciated, thank you!