Spider webs

Ok, So I have these ufo's in my tank now. An unidentified floating object. They appear like they are spider webs across all of my live rock. I will now try to list what is in my tank. It is a 29 long, with about 50 lbs of live rock. It has a dsb. I have a flounder, foxface rabbit, mandrian goby (truely a blenny), two engineer goby's, lawnmower blenny, emerald crab (freakin huge about 3 inches across body mass), banded coral shrimp, peppermint shrimp, about 10 hermits, and about 20 assorted snails. Hope this helps, Please try to help me figure out what the spider webs are.

 

Can you get pics ?

 

they could possibly be nassarius snails if you have em.They tend to leave snail track on every thing when there cruising around

 

Probably just some vermetid snails. No worries they are not bad. Do a search on them here on 3reef and you will find several threads about them.

Marc.

 

Here's an extreme macro video of vermited snails.

Monterey Bay Aquarium: Snail (Vermetid Gastropod) Feeding Video