jlt23 Member Jan 20, 2008 #3 I have Icecaps 4x39 T5's on my 45 gallon and my RBTA is doing fine. He's getting huge.
G garygb Active member Jan 20, 2008 #4 Even without overdriven t-5 ho's a 4 bulb fixture would be plenty for a 40 gallon tank.
