Sorry for the slow response, but I’ve been out on business and didn’t get back to my office until now.
It’s a 50 gallon tall. I have a 30 gallon sump with about 50 lbs of sand, 12 mangroves and a skimmer. The light is a Current Nova Extreme T5HO with a moon lights. The actinic lights come on 30 minutes before the others and go off 30 minutes after the others. The moon lights of course come on as soon as the actinic’s go off.