Jun 22, 2014 #21 Fraser Aquarium Advice Regular Joined May 3, 2014 Messages 52 I was going to say I have the 20, 30 and 70 and none have cartridge's. I only use the carbon on my 20gal, a it is unplanted, so far anyway..
I was going to say I have the 20, 30 and 70 and none have cartridge's. I only use the carbon on my 20gal, a it is unplanted, so far anyway..