What is this block blob?

[LionsLife_]

Black blob looking thing attached to a rock secreting its oooze...... what is this thing?

 

[tdileo]

A little hard to see, but I’m guessing vermetid snails. Not immediately harmful, but a lot of them secreting their web (which is how they catch food) will irritate corals.

 

[KJ]

Vermetid snails.

 

[Reeferdood]

Vermetid monsters.... I wish there was a real proven way to kill them..

 

[LionsLife_]

thanks guys. Do we physically remove it?