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Top Shelf Aquatics

White fuzzy growth on live rock ID


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Tough to tell by those pics. Could be bacteria, dying algae, hydroids, sponge growth, or a few other things. Try googling those I've listed to see if anything matches.

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ok, I wasn't sure iof it was a type of sponge or other beneficial filter organism.  Luckily that rock isn't locked in place so this weekend when I'm cleaning I'll pull the rock and scrub it down. Thanks for the feedback.

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