R reeferman00 New member Jan 9, 2008 #1 i have a hang on back filter and it has a carbon pouch in it. should i leave it in there or take it out?
i have a hang on back filter and it has a carbon pouch in it. should i leave it in there or take it out?
jjj1100 Member Jan 9, 2008 #5 yes you should replace it at least monthly. Carbon can be run all the time