What is it?

[CarmieJo]

Hi,
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I've got this stuff on a piece of LR. It has a bunch of little tubes, mostly around the edges and looks like velvet. I think that there are more tubes now than at first but no other changes.

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How about this guy? I just saw it for the first time today. It kind of moves like a snail and has the little antenna but the white part looks soft and the "foot" completely surrounds the "shell"

Thanks.

 

[pepe.king.prawn]

first one could be some sort of sponge perhaps. The second sounds/looks like a stomatella snail, sometimes called a "cap snail". It has a shell, but looks nothing like an average snail, it's reef safe and may reproduce in your tank given time. Good Luck.

 

[CarmieJo]

Thanks Tristan. I googled stomatella snail and you are right on the money!

 

[fishaholic911]

I think first pic is sponge