Quote:
Originally Posted by lastlight
Wow you're sure you can't get away with a pair of 150w? Seems like a ton of light to me to begin with. My guess would be to hang'em high =)
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When I had my frags in there I was only running 150 watt halides. But I did run a 250 watt halide on my 20 gallon frag tank which was only about 11" of water I think. They were all about 8" off the surface of the water I think. But it's really up to you - all you really have to watch for is acclimating the frags to higher or lower light with placement.