I have a 120 gallon tank with a 36x24x12 frag tank plumbed togther. The main tank has two 250 watt 14k reflux and two t-5s. The frag tank has one 250 watt 14k and 4 led powerbrite. I have a calcium reactor a acr junior. I dose alk usually daily. I change 25 gallons every other week. I am trying this winter to move my sump to the basement. I have a mag 12 for the main pump. For the frag tamk i have a mp20. On the main tank I just bought a mp40 and have two korrila on a korrila controller.