Polarbear, I use the 48" over my Oceanic 90 gallon. 1st pic is with the purple plus bulb and an actinic, the 2nd pics shows all lights on...391848_2363008322387_1465722510_31817499_746307027_n.jpg400401_2363010762448_1465722510_31817502_1003376057_n.jpg