ID please

[Waynage01]

any ideas what this is. Did a water change yesterday and today I see this on the rock with a mucus like thing floating and swaying in the current.


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[mr_X]

I can't tell for sure but I'm guessing the brown thing is where the mucous is coming from? If so, it could be a vermetid snail. They stay put and use the mucous net to catch particulate matter to eat.

 

[Waynage01]

Thanks for the quick reply. Am guessing it's good for the tank and won't do any harm if it is what your thinking


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[mr_X]

If so, it's not really harmful, but they tend to stress out corals when their mucous is touching them....not intentionally, but just bumping into them. They also spread at a fairly decent pace. My personal take on them is that they are amazing creatures from the ocean that overcome insane odds to survive. I would not kill them off. Others would disagree.