Quote Originally Posted by sweetpea472
Thanks! I've never seen a blue MH before... have you used them?

The light I was looking at is 150w MH with 2 x 65w actinics. The blue MH is 150 w too. I'm assuming that any MH is going to have to be hung from the ceiling... could I hang it high enough to not bake the tank, or would I loose to much light penetration?
I didnt read that (the 2x65W actinics part) I think then that will be fine, and about 6 inches above the tank would be fine. Someone will chime in if they think other wise, but for a 20 gal I think that should be ok.