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			#1  
			
			
			
			
			
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|  What is this? Can someone please identify this purple polyp looking thing on the right.  It has spread all over my rocks in the last 5 months. It has not overtook any of my corals yet and my monticap has actually grown over it. Just would like to know if it is good or bad. | 
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			#2  
			
			
			
			
			
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|   Hey I have that too. I kinda like it which that means that it will die out and be gone within about 6 months for me   I think its a form of clove polyp or something. It does well in nutrient rich areas and areas of low light. I lost a colony that was shading it out a few months ago and its slowly deteriorating. 
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			#3  
			
			
			
			
			
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|   Clove polyps (Clavularia spp.). I've got some purple I put in the tank on purpose but thinking probably not the greatest idea. They don't seem aggressive as GSP (which I definitely should have passed on) but will spread all over as you found. | 
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			#4  
			
			
			
			
			
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|   Thanks Christy and Mark. This stuff seems to grow where there is bright light. I do like the look of it as well. As long as it does'nt start taking over any of my corals. I moved a candy cane coral on to it a few days ago and the coral killed the polyps so they can't be all that bad I hope. | 
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			#5  
			
			
			
			
			
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|   it's easy enough to trim if you need to... 
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