I have a 60g tank that I took down so that I could consolidate my tanks. I really miss it though, and plan on setting up again. All I want in the tank is a pair of maroon clowns and live rock. Without breaking the bank (reason for inital breakdown) what is the esential equipment. I already have a backpac 2+ skimmer, but was unsure of what light and other equipment I need to maintain the live rock.