Product called DinoX claims to get rid of bryopsis.  However I've never used it and am unsure how safe/effective it is. 
 
Hydrogen peroxide does work for spot removal as stated.  I use a salt water / hydrogen peroxide mix to dip zoas if I notice any bryopsis on them. 
		
	
		
		
		
		
		
	
		
		
	
	
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