i run a fluval 204 and a milennium 2000 on my 75G and love it. the media tends to clog quickly, but i just pull it out and rinse it in the sink every week during my waterchanges. so far, the only problem i have had is cleaning the intake tube, because it is shaped like a U and it's hard to get my flexible brush in there. i would highly recommend this filter, because it works well and is very cheap.