I had one in a 75 gal and problems I had (in order of concern)were size, splitting and moving. If it didn't split it was stinging other corals or it would start to split and the little clones would move around. I started pulling them out and put them into there own 20 gal with a couple Darwin Clowns. I think there are 10 in there now, they mostly stay clumped together.
I've got a 65 watt 50/50 pc and only feed the clowns.
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Jared 
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