voss345 Jack Dempsey MFK Member Jun 21, 2007 2,118 1 38 ct Aug 31, 2008 #21 yea in my fx5 i just have ceramic rings (biological), i use HOBs for mechanical and chemical
dirtyblacksocks Fire Eel MFK Member Jan 25, 2008 1,542 5 68 Moreno Valley Aug 31, 2008 #22 Eheim's have a bypass system that makes polishing pads possible, but canister filters are really best at biological filtration - use HOB's for chemical or just dump them in the tank in a filter bag next to the output.
Eheim's have a bypass system that makes polishing pads possible, but canister filters are really best at biological filtration - use HOB's for chemical or just dump them in the tank in a filter bag next to the output.