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#1
05-23-2005, 04:14 PM
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Ouch, I hate to say this Marie but those look like the little buggers
 The ones in my tank were a little browner in color but hydroids just the same. They can give off a powerful sting, which eventually can kill sps corals. I had two areas of rock where the hydroids were actually matting underneath two sps bases that were about 4 inches in diameter. I was advised to remove them if the growth patches were small and confinned, if they are spread throughout the entire tank I would probably take a more drastic approach and get new rock  
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cheers, Rich all that we do is touched with ocean, yet we remain on the shore of what we know http://www.advancedaquarist.com/2005/5/aquarium Last edited by sumpfinfishe; 02-13-2006 at 04:23 PM. 
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