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					Originally Posted by  mseepman
					 
				 
				Ahhhh....that might make sense.  I have what I think is a green pocci that has never really done much of any growing in the last year....it is fluorenscent while this little one wasn't so I didn't connect them.  I have been pretty careful about pests in the tank and this had me confused. 
 
Do they become a problem in time? 
			
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 They "drip" polyps beneath and around their colonies. I've seen a few posts requesting help riding their tanks of it.