It's been running for about a year now. Tank inhabitants are 1 green terror, 1 red devil, 1 jack Dempsey, 1 parrot cichlid, 1 jewel cichlid, 1 hap compressiceps, 1 yellow belly Albert, 2 hap venustus, 3 labs, 2 Mbuna, 1 peacock, 2 ruby sharks, 2 Plecos, 2 polypterus, 2 angel fish. One of the filters is a aqua clear 70 and the other is aqua clear 125. I have a bubble wand in the tank. All I put in my tank is water treatment and aquarium salt. And ich cure once in a while and even less often a bit of Melafix. Temperature is always around 80 but never above it and never below 75. I haven't tested my water for a while. Also the water in my tank evaporates fast and the level will drop a great deal. I do a half water change every week or two. I clean the filters every week, And a 75% water change every month only because my water gets green and cloudy but I never see any algae anywhere? I don't plan on having plants I just wanted my water to clear up so my tank can look nice all the time and not be such a pain to clean.