how high to hang halides

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Brad.Sedore

Aquarium Advice FINatic
Joined
Nov 26, 2008
Messages
564
hey guys

i finally decided and i bought a 2X400 watt halide setup with 2 VHOs the fixture is about 40 inch long. how high should i mount or hang these things above my tank. i dont want to cook my fish but want max lighting for my tank

my tank is a 120 its 24 inchs high and 18 wide. 5 ft long
 
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