White circles on my tank's wall???

[bizzygenius]

I did a diatoms scrap off my tanks wall and topped of the water early Tuesday morning. Well yesterday I clearly noticed these small white hard spots sporatically placed on the walls. When I looked a LOT closer, each one of them has a small brownish circular thing in them. Looks like the beginning of some kind of worm. Has anyone else had these before? I'm dying to know what they are and if they're beneficial or not.

Thanks!

Water Paremeters:
PH - between 8.2 and 8.4
Ammonia - 0
Nitrate -02 - 0
Nitrate -03 - 5
Tank Age: 1 Month 2 Weeks
Inhabitants:
1 Coral Banded Shrimp
3 Domino Damsels
11 Blue Legged Hermits
11 pounds Live Rock
LS and CC

 

[nacl freak]

Picture?

 

[scotts]

Look at post #6 of this thread. https://forums.saltwaterfish.com/t/163864/reef-worms BTW here is the hitchhiker thead that it came from so you can look for other stuff in your tank as they pop up. https://forums.saltwaterfish.com/t/181286/marine-tank-hitchhikers
HTH and WELCOME to the board!!!

 

[bizzygenius]

Your reply really helped. I looked at the pictures in the thread attached and identified them as Spirorbid worms. I'll do my research on them and find out more about them. Thank you so much.