Could someone ID this please

[Bryon]

I wasn't sure where to post this because I'm not sure what it is. This was on a digital thermostat wire, but it's all over my rocks. Anybody know what it is? Good, bad, or just plain ugly? Thanks in advance.

 

[saltyfilmfolks]

Vermetid snail. We call them snot worms.

 

[melev]

Those will melt off in a solution of white vinegar and water.

 

[Bryon]

Those will melt off in a solution of white vinegar and water.

Is there anything I can use for the rock while it's still in the tank?

 

[saltyfilmfolks]

Dabs of super glue or putty.

 

[melev]

Is there anything I can use for the rock while it's still in the tank?

Break them off manually, and your hermit crabs may eat the worms within.

 

[Bryon]

I've read a yellow Corsi Wrasse or blue spotted puffer could take them out. Of course I also read they don't work. Anyone have good results with either one?