Must Save The Brain!!

cgj

Member
I have a really nice pink platygyra, maze brain coral. I got him like a month ago. When I got him he maybe had one square inch of his skeleton exposed with no flesh over it and that amount has stayed but now some gross green hair algae is growin on the skeleton, i tried taking it off by hand and using a toothbrush, but to no avail. How do I restore it and get that crap off?
 
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