I just put together a 30g tank connect to my main display tank sump, is the 65W PC enough to keep Zoas? it's a 30" long 18" height and 12" deep, righ now I only have one 65W and I keep them about 6" off the bottom on a rack. Should I get another 65W PC? I aready have one 65W so I don't want to spend ton of money on the T5 fixture