MH placement help needed

unleashed

Active Member
i currently have a 125 gal tank its been pretty much a fowlr ..i recently picked up a few zoas and green star pollups . the lighting i currently have is a Hamilton retro hood 96w VHO X2
with 2 400w MH ..this is a newer light system and prefer not to buy another.. i bought these lights for a 165 gal reef i had set up before i sold it.what would be the preferred distance from the water surface as to not melt the zoas and pollups for good growth
 

unleashed

Active Member
I cant find my tape measure to be sure on tank height however its a standard 6 ft 125 gal tank I'm guessing 22 high?
 
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