after looking at some of our members tanks with sps corals in it, i think i fell in love..the wide array of colors just is awesome., i dont know any of there names, but what worries me is it seems to have them you have to have the best of the best in water quality, and equipment, calicum reactors ect...i have been able to keep most corals going nicely and spreading. i have two hard encrusting corals and they are growing and spreading. however when ever i tried to have any Moon corals ect..(i think they are called LPS) they have always died. My water quality is almost def the problem.as i dont do the 20% water changes a week im supposed to..its more like 10% every two weeks.. the tank is 180 gallons and its all i can keep up with right now. So my question is could i be successful with some SPS corals? I have some nice open spaces up toward the top of my tank. I have 3 250 watt 14.5k metal halides and 4 96 watt power compacts for lighting and i have great water flow in a 180 gallon tank.