Please Help! White Cotton Balls

siychajose

New member
I got this from my tank like a white cotton balls. Please help how to get rid off this and please identify. Thanks for helping.
 

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AliciaP

New member
I have something like that. Mine seem to be "pineapple sponge". They have feather like things at the top of them. They just arrived in huge numbers. My tank is older with no new live rock for 2 years! How old is your tank? They cover one side of my sump.
 

siychajose

New member
My tank is almost 2 years now with no additional live rock. I think this is pineapple sponge. They just come out a few days ago. I also ask some of my friends that this is harmless.
 
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