I can tell rite now you dont have enuff light for any coral, you should shoot for at LEAST 200 watts of lighting, on my 20 gallon tank i have 130 watts. about 4 watts per gallon minimal and 7 watts pergallon is good and 10 watts pergallon and you can keep whatever you want.
Sorry to correct you but only i think only freshwater is mesured 4 watts per gallon.
And what im going to do is get 1 tek retro t5 fixture and maby get 1 more later then a halide for the middle.
Im sure if you give a rough location of where you live we could tell you where to buy them.