jmorgret
12/21/2011, 06:42 PM
My tank came with 2 canopies, one about 4" high, was used for vho, and one about 15" high used with MH pendants. I am currently looking for lights and really like the smaller canopy better than the huge one. Tank is 24" deep. I was thinking 250w mh, but was wondering if I could get away with retro in the smaller canopy of 150w. The light is 3" high, and the water is about 1-2" below the top bracket of tank, so the lights would be about 2-3" above the water line. Is it too low? I would think 250w at that level would be too much, but wondering about 150 or even a 70.