I am trying to do a reef tank. I have a duel state light. It has a moon light and 2 blue and 2 white lights. I have 2 power heads for circulation. I tried to put it higher in the tank and it started not doing so well; so last night i put the rick lower and now it is doing better. I have also added a star palup, galaxea, and a torch coral. it is starting to look better. It's just slow growing.since you've got a coral might as well make your tank a reef tank. what kind of lighting/circulation do you have?