Aqualine 150w metal halide, how far above glass is safe?

[Anonymous]

I have an All Glass 92 gallon corner tank. I can't hang the fixture because it's a rental house and the ceiling is like 20'. What is the minimum distace above the glass cover that I can suspend the fixture? I'm going to make some blocks to hold it up. It's an Aqualine 150w, 10K HQI fixture - on of the German setups.
Thanks!
Jim

 

[Carpentersreef]

It should say on the data sheet included with the light, but if you don't have it, you should be able to find it herenullAqualine site
But I think it's recommended 12 inches.

Mitch

 

[dieselboy]

This may or may not apply to your setup, but FWIW, I used to run a 400W Iwasaki one inch above the glass center brace for over a year, with no problems. The canopy was fan cooled, however. Not the safest route, but it did work.......

 

[AnotherGoldenTeapot]

I run 250w bulbs 3 inches over the tank lid - the lid uses toughened glass.

I stress tested fan failure at that distance using normal glass and it cracked within 10 minutes.

 

[Anonymous]

Thank you very much for the replys. Sounds like my 150W will be fine 4" above the glass.
Jim