MH lighting question

[sharkbite]

How high should my mh fixture hang above my tank. 75 gallon with lps, softies, and some sps frags that i just got. the light fixture is 2-150 and 4 t5 54 watts .

 

[dacaptain78]

Check and see what the manufacturer recommends.

 

[sharkbite]

my concern is with sps losing its color and not growing.