? w/Viper 150w. MH

Jds53

New member
Is anyone using this light? I have had one for about 6 months now and am not to happy with it. I am wondering if maybe i have it adjusted wrong. How high off the surface of the water should the light be? And how long should i leave it on a day.
 
a friend of mine have the same thing like your, his mh is about 6'' from the water and his corals love it.
 
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