White web thing on live rock?

[petur170]

New to SW, trying out a pico reef. What is this white web like growth on my live rock. This appeared a week and a half after i bought the rock.

imgur.com/a/5xl1V

 

[Sniperhank]

I can't view from work, but normally webs like you are describing are vermetid snails. Most can be harmless, but large ones can stress and eventually kill corals with the webs they throw out to feed. I use super glue gel and simply glue them shut inside their shell.

 

[petur170]

its more thick then that and there isnt a snail that i cvan see