What is this creature?

[Hashir123]

What is this creature? I have several of them in the base of some corals and on rocks. They look like something sticking out of the rocks.

 

[PR_nano]

Vermits snails

 

[Shibaken3]

vermetid snail = bad

 

[Bioloco (EasyReefs)]

Exactly, Vermetids, a type of filtrator sesil snail. Bad or good depends of the number of them. Are commun in aquariums and the number of them increasing by organic particles in suspension. So be carefull with animal feeding and mechanical filtration.

 

[Doctorgori]

when it. doubt, kill it
…just joking, but I would nip that in the bud now

 

[kevgib67]

A handful of bumblebee snails cleared them from my tank. I haven’t seen a single one in about 9 months. Of course the number of bumblebee snails depends on the size of your tank.