greenreefer
Active Member
I have a fairly low profile canopy and I'm sure there isn't enough room currently for decent air flow around MH lights. I found a 3 x 250w MH fixture with t5s that I'd like to get. It has top exhaust fans and would sit on legs keeping it about 4 inches above the top of the tank. My question if I'm going to mod my canopy or build a new one how much room would I want above the top of the MH fixture. the back of the canopy is open and about 5 inches from the wall. Do I need to consider putting other fans in the canopy in addition to the built in ones in the fixture? thanks