MH mounting height

Reefstick · 03-09-2006, 04:27 PM

I am sure this question has been asked before. but here goes.

I have a 75G reef (Sps, Lps & Softies) with 440W VHO's and two 175W MH's in a custom made hood.

I just put the MH on two or three months ago.....I mounted them about 10 inches off the water surface.
I wounder is this too far off the surface, or just right?
The animals look great, and the wife thinks they are just fine, but I like to tinker......
What do you guys think?

Charlie97L · 03-09-2006, 04:51 PM

Quote:

Originally Posted by Reefstick

I am sure this question has been asked before. but here goes.

I have a 75G reef (Sps, Lps & Softies) with 440W VHO's and two 175W MH's in a custom made hood.

I just put the MH on two or three months ago.....I mounted them about 10 inches off the water surface.
I wounder is this too far off the surface, or just right?
The animals look great, and the wife thinks they are just fine, but I like to tinker......
What do you guys think?

that's excellent. my 250 is about 9" off and i have heat issues... i also saw a guys' really nice setup, and he had a 400 and two 175s. the 175s were about 10" and the 400 was about 14. if you aren't having temp issues or bleaching... leave it alone!

Reefstick · 03-09-2006, 04:59 PM

I let me wife know that she is right.
I have two 4" fans on the hood, One in and one out. It seems to do the trick, The tank stays about 78-79 degrees.

What do you think is a good wattage for a 150 gallon reef? the tank is 6 feet long...... 3X 250's???

cheeks69 · 03-09-2006, 05:03 PM

Quote:

Originally Posted by Reefstick

What do you think is a good wattage for a 150 gallon reef? the tank is 6 feet long...... 3X 250's???

That would work perfectly since a MH bulb will cover a 2x2' area.

03-09-2006, 04:27 PM	#1 (permalink)
Reefstick Midas Blenny Join Date: Jul 2005 Location: Aurora, CO Posts: 124 View Gallery Karma Komment	MH mounting height I am sure this question has been asked before. but here goes. I have a 75G reef (Sps, Lps & Softies) with 440W VHO's and two 175W MH's in a custom made hood. I just put the MH on two or three months ago.....I mounted them about 10 inches off the water surface. I wounder is this too far off the surface, or just right? The animals look great, and the wife thinks they are just fine, but I like to tinker...... What do you guys think? __________________ 12 gallon reef + 75 gallon reef + bad seals = flooded basement. Take the remainder of the living corals, fish & rock subtract all sanity and you have an extremely full 30 gallon reef with a crying owner.

03-09-2006, 04:59 PM	#3 (permalink)
Reefstick Midas Blenny Join Date: Jul 2005 Location: Aurora, CO Posts: 124 View Gallery Karma Komment	Re: MH mounting height I let me wife know that she is right. I have two 4" fans on the hood, One in and one out. It seems to do the trick, The tank stays about 78-79 degrees. What do you think is a good wattage for a 150 gallon reef? the tank is 6 feet long...... 3X 250's??? __________________ 12 gallon reef + 75 gallon reef + bad seals = flooded basement. Take the remainder of the living corals, fish & rock subtract all sanity and you have an extremely full 30 gallon reef with a crying owner.

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