I have that fixture on a 125 with with the 3x150w MH
. I wish I had the 250's. You may want to think about going with 400w bulbs on that deep of a tank. It depends on what you want to keep.
Oh, and changing the bulbs is a PITA. You have to remove an endcap, then slide a cover back so you can start to slide the glass covers of the MH
bulbs to gain access. This is best accomplished by two people as the fixture is 6' long and the bulbs are breakable.
I strongly suggest that if you order it online you insist they ship ALL bulbs separately. I got my unit from the Drs. and I was able to arrange cross shipping (twice) due to the sound of broken glass in the boxes when they arrived. It was the PC
bulbs that broke.
I love the fixture. It looks great, is easy to clean and is pretty quiet (3 fans, 1 above each MH
bulb). But it's almost time to change bulbs again...