Clear worms/ sand tunnels/ STN

[BradR]

I’m thinking of dosing interceptor due to these worms I can’t identify. They create detritus tunnels on healthy SPS tissue which causes recession. I see what appears like feeding strands at times which irritates the corals. I blast the SPS with a baster and a lot of new sand keeps blowing off each day. The tank has strong circulation. These came in on some new corals I had bought. Any thoughts?

 

[Crabs McJones]

Dorvilleidae worms and vermetid snails.
The dorvilleidae worms are good clean up crew members, the vermetid snails can bug corals, but I dont think either are the source if your STN, I think they're a result of your STN (feeding off the dead tissue)

 

[BradR]

Thank you. I honestly wonder if I have these other burrowing creatures. I’m just a half hour from the other reefer and wonder if we got the same infected stock as my corals keep getting covered by white dust like from a burrowing pest
https://www.reef2reef.com/threads/small-eunicid-sylliad-worm-eating-sps-with-videos.572356/
http://www.reefcentral.com/forums/showthread.php?t=2382369