How high off the water for MH's

[mongoose]

two 250W MH's how far from the water surface should they be mounted on a 65g? I was thinking 12 inches should I make it more?

 

[robchuck]

12" would be good. 8" would be the minimum I would mount any MH above the water.

 

[mongoose]

Thanks Rob...for helping me once again

I feel like I've learned so much in just 8 months mostly in part to this board and articals on reefcentral.com....always more to learn though.....lots more

 

[golfish]

I've always hung mine 8-9".... Higher would be better then lower.