I have a 56 gallon corner tank with a 75 gph protein skimmer, 10 gallon sump with live rock ( no bio balls ). 400 watt MH 12K with a lunar LED. I only have a flame angel and some damsels. I had to get rid of the other fish that were unsafe for the reef. I don't know all the names of my corals but I know 1 is a gonipora. It is my favorite. My tank has been a reef tank for 6 months but the tank has been established fro 3 years as a fish only. I am not running a water chiller or U.V sterilizer. No need right now. Any advice would be great.