After dreaming for weeks i finally ordered an fx5 of amazon for my...... 55 gallon african cichlid tank http://www.monsterfishkeepers.com/forums/showthread.php?409711-55gal-Stand-and-tank-build&highlight= after i was fed up from all the noise from my other filters / air pumps. I have currently running a fluval 204, aquaclear 110 and a whisper 10-20 with a hydro V. TO much noise!!!!! So the 204 will be transferred over to my 20 gal as sole filtration to reduce noise on that system as well.... So excited. I ordered seachem biomax 4 liters to fill it.