Quote Originally Posted by ErikH View Post
I have a 6 bulb T5 fixture above my 40g breeder frag tank. I am going to post par pictures for that and my 200g probably tomorrow!
I agree with Eric on the 6 lamp. I have a 4 lamp fixture on a 40H 36 x 12 x 20 high with a 5" sand bed and it looks fine. I think you will need the extra two lamps to cover the additional 6" in depth.