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Old 11-28-2012, 04:27 PM   #1
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Unidentified Critters

Hi all.
Does anyone know what these are? Both approximately 1/4inch in size. seem to be harmless but should I try & get them out?
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Old 11-28-2012, 04:41 PM   #2
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It's a scypha sponge. Also called a Pineapple sponge. Reef safe. But don't think this means that you are ready to keep sponges. These little guys appear in new aquariums, or older ones that have had some work done on them. They will eventually disappear. They are a filter feeder that needs lots of particulates in the water. They and tunicates commonly grow in sumps and places where there is little to no light.


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