I have xenia who climbed all the way to the top of my tank below a 400w halide. I halso have a very large colt coral under a 250, the top almost come out of the water, and my kenya tree propagates like crazy under MH too.
I have zoos, GSP, etc. lower in the tank tank that do just fine too, they could probably move up but I like them where they are.
I agree, I love to watch my xenia and other softies swaying in the tank current.
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