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- Jan 12, 2015
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I honestly have no clue where to post this, but if you know of a better thread, let me know! So I recently started seeing these little orange/yellow cylinder things pop up on one rock of mine. I think it may be a sponge, or a type of coral? And then there are these little flattened bubble looking things that I think may be a type of algae or another sponge?? They are black, white, and clear.


