So I was currently running 2 X 250 W radiums on M80 ballasts over my 150g 48LX30HX24W. The BML actinic strip that I've had for around the past 5 years has stopped working. I am looking for something similar to use mainly for dawn/dusk application. After reading through the posts I think I am leaning towards two 54W T5 retro's with either 2 Blue + or 1 Blue + and an actinic. With one in the front and one in the back of the halides I feel like this will give me pretty good coverage. I considered doing two 54w in front and back but just dont have the room to fit these. Will 2 54 W bulbs suffice? and are there any bulb combos that I should consider to get a nice dawn/dusk look?