That level of cyano or whatever it is shouldn't be affecting your zoas.  If they are upset, something else is wrong.  A little cyano/dinos/algae won't all of a sudden go out of control, especially if regular maintenance is being done.
In the first two pictures, the corals seem fine.
				
			In the first two pictures, the corals seem fine.
 
				 
 
		 
 
		 
			 
			 
			 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		