Well I was sure I had enough light in my 50 gal after I put on my 250w se mh, but now I am unsure. Will this be enought light to keep acros? I know montis will be fine but I realy really want to keep acros. The tank is very bright and 3 feet long. I have a 14k hammy se bulb in a spider reflector sitting 9 inches off the water. I was thinking of adding a 96w pc behind and below the MH angled into the tank. Anyone out there using one 250 over a 50/55g tank and keeping acros? Thanks.