Re: Ich treatment and carbon filters !??? It's impossible to maintain any meds at stable levels that are going to help your fish while you are using carbon, also it's difficult to dose a main tank accurately since you have to figure out how much water you are actually treating. Once a 55 gal tank has sand and live rock in it, you don't actually have 55 gals of water anymore. Your best bet is to remove your fish and treat in a QT tank. |