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Old 10/28/2020, 02:50 PM   #1
Registered Member
Join Date: Jun 2015
Posts: 10
Help identify this pest

Hi Reef Community,

I need some help identifying an unknown light green slimy looking thing popping up all over my live rocks. It doesn't really look like a type of algae or a critter. I first noticed it a few months back but ignored it because I didn't think it would be a big deal. Now I'm starting to see it pop up everywhere on my live rock. Please help!

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Old 10/28/2020, 03:07 PM   #2
Michael Hoaster
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Join Date: Feb 2004
Location: Boulder, CO
Posts: 5,221
I see some sponges and a wiry turf algae. Sponges are good for your tank, providing living filtration. I'd remove any that encroaches on valued corals, etcetera, but otherwise its good!

As many naturalists and environmentalists have suggested, we should set aside our arrogance,
our desire to conquer and control everything, and walk hand in hand with Mother Nature. -Walter Adey

Current Tank Info: 180g Seagrass Sandbar Lagoon, START DATE November 28, 2018
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