MH 250 Hqi Hieght requirements

[Reefcube29]

So just wondering exactly how high am i suppose to keep a hamilton 250 hqi Mh above a 37 gallon tank. Going down to lowes in just a minute to figure out something to hang it with? Is there an exact hieght i am suppose to stay above the water? Also should i start out higher to adjust my corals to the new light? I am switching from 4x24 watt t5 to a 250 hqi mh with a ushio 20k bulb,.. any help would be greatly appreciated. I have a mixed reef is that is something you need to know. Thanks, Jim

 

[Spinner]

Hello,
I keep BULB 12" off water surface

 

[OCReefMadness]

I'm hanging mine above the water 12" high

 

[Reefcube29]

Thank you guys!

 

[Armen]

12" is more than enough lol u can go closer but ur water will heat up faster

 

[Reefcube29]

Well tried the 12 inch suggestion. Tank heated up so fast, it actually jumped in temp about 3 degrees in just a lil over an hour. Got it 2 feet in the air now. Raises temp about .2 every hour at the current spot so i believe it is fine where its at now.

 

[toromp]

Go back to 12" and add some fans to keep it cool!

 

[Reefcube29]

Done thanks. Trying to keep a 37 gallon cool is tough with the new metal halide. Courtesy of six2seven!