What is the minimum clearance for MH?

ReefPug · 09/14/2009, 09:16 PM

I have a shallow canopy on a 185 gal (60x30x25) and really want 250 MH fixtures. From water to the top of the canopy is 10". If this won't work is T5 the best option. I want to be able to have SPS - Mixed reef tank.
Thanks!

dvmkv · 09/14/2009, 09:22 PM

I have 2 250w MH and they are about 8 or 9" from the top of the water. I have no problems and My tank doesn't go over 78 and I have it set at 76

bmooney31 · 09/14/2009, 09:36 PM

I have 2 250 hqi pendants about 4 inches off the water on my 55 gallon. I also have a shallow canopy, I dont have a problem with water temp either. I have a fan mounted on my canopy and my tank stays right around 81.

09/14/2009, 09:16 PM	#1
ReefPug Registered Member Join Date: Jan 2009 Location: Austin, Texas Posts: 127	What is the minimum clearance for MH? I have a shallow canopy on a 185 gal (60x30x25) and really want 250 MH fixtures. From water to the top of the canopy is 10". If this won't work is T5 the best option. I want to be able to have SPS - Mixed reef tank. Thanks! __________________ Marcy

09/14/2009, 09:22 PM	#2
dvmkv Registered Member Join Date: Jul 2009 Location: clarksville,TN Posts: 171	I have 2 250w MH and they are about 8 or 9" from the top of the water. I have no problems and My tank doesn't go over 78 and I have it set at 76 __________________ HAHA Current Tank Info: mixed reef...

09/14/2009, 09:36 PM	#3
bmooney31 Registered Member Join Date: Feb 2008 Posts: 81	I have 2 250 hqi pendants about 4 inches off the water on my 55 gallon. I also have a shallow canopy, I dont have a problem with water temp either. I have a fan mounted on my canopy and my tank stays right around 81.