Tropical Fish Keeping - Aquarium fish care and resources

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Nathanrb4 09-01-2007 08:42 AM

ID Please
Just wondering if anyone can identify these (the grey stuff with the white around it) for me. they are about 1mm to 2mm think and about 20mm across at their widest and They`ve only just appeared on my live rock. The live rock has been in my tank for about a month and today was declared ready for fish by my local shop.

Thanks. nathan

hamdogg08 09-11-2007 10:53 PM

some type of sponge?? It's kind of hard to see. Is it stationary or crawling around?

caferacermike 09-12-2007 04:01 PM

That pic is tough.

Some of my first guesses would be small patches of star polyps forming, zoas forming, sponges....

If they crawl some type of flatworm.

gymnothorax 09-19-2007 10:49 PM

picture is blurry, but my guess what be briarium.

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