Hight of a Light

[stinga]

Hello All

I am just curious about the height that a MH SE 175watt should be hung at off my tank?1",2",5",6",8",etc.I will be using it for My 20 gal..............:orangehat

[Invigor]

try it at different heights and stop when it gives nice light to all the corners

[stinga]

Thax John sounds like straight logic!:BangHead: :new_infin