Metal Halide again

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Most set up mh's using 1 bulb for every 2' of tank length. 1 bulb centered on a 4' tank will leave the sides noticably dimmer than the center.
I'm running 2 MH bulbs on a 5 foot tank and the coverage is just fine for me. I can post a pic if you like. I'm using tube bulbs.

The bulbs are about 14in above the water line however, the closer to the water, the less coverage you'll see.
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