Coral ID please

From top to bottom.
Sunset millipora
Setosa montipora
Joe the coral acropora

Get rid of the paly around the setosa before it becomes a problem.
 
I'm not the best person to ask that since I never have any paly. But I would take out that rock out and chisel them off. Be very careful of palytoxin though. It can make you real sick. Please do your research before attempting my suggested method.
 
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