the lights are 48" blue and white biax bulbs, I really dont know much about them, I plan to havea hippo tang, 2 clowns, a hawkfish, a blenny, a jaw fish, a cowfish, a yellow tang, a queen angel or emperor, some soft corals like anemones for the clowns, feather duster, 1 or 2 sea urchins, frogspawn, a starfish, and a cleaning crew,but first i need to check the compatability of the fish, and I need too look deeper into my lights to see if it;ll support the corals. I want arount 80lbs of LR and bout 2' sand bed, I also plan to get 2 koralia 3, and I might make my own phosban reactor.