Am in a similar situation as Amanda's Tank. Have four T8's on top of my 24"tall 80 gallon tank. It should be low light at ~40umol, I guess. I want to go up to medium at ~55umol since adding excel and ferts. Will be looking to get a double T5HO fixture with poor reflector and rest it right on top. No real question here. Thank to Hoppy, all my answers are out there.
Last edited by Gold Finger; 11-18-2012 at 02:12 AM.