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[Jim_Barry]

I aquired a piece of live rock a few months ago and it came with a family of polyps that are brown in color. and very feather like. Now it is spreading like crazy all over the rock and sandbed and even attaching to the powerheads. The polyps break off and the individual stems float around and attach to other area of the tank, causing it to multiply and spread very rapidly.

I now have it everywhere and I don't know how to get rid of it. I have tried pulling it off the rock but the pieces breakaway and reattach themselves making it even worse.

Here is a picture (blurry) and I hope someone can tell me how to control it. I really don't want to take the rock out of the tank and scrub it.

I have been told it is a colonial polyp or hydroid of some sort.

Thanks,

Jim