Bound to happen with macros... they harbour anything from what you mentioned to all kinds of 'pods. All the macros in my tank grew in naturally, so I only have copepods and amphipods. I've come to realize that I'm very lucky... the only bad things I've had are Bryopsis (that sucked) and I've seen a hitchhiker crab and a lone flatworm. 
		
	
		
		
		
		
			
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				Calvin 
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Planning a 29 gallon mixed reef...
			 
		
		
		
		
	
		
		
	
	
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