White spots?

That bottom photo shows the spiral pretty well, at least to me.

Spirorbid worms I'm thinking, harmless and a sign of good water quality

 

Awesome! I didn't have good luck with my first sw tank so hopefully this is a good sign!

 

No, I too see the spiral shape, but thats because I just got new glasses yesterday.... LOL.....

 

I see it as well, Its Spiral.

Jamie, take a good look at it, if it has a little thin antenanea lookign thing comming out of the open side this its definately a filter feeder.

I have had tons of these in my tank, I even think at 1 point it hit the 1000 mark in my 110 gallon. They come and go, Not harmful, just a pain in the arse, that I need to scrape them off first before passing my magnet to clean my acrylic tank, if not it would leave scratches.

I think I introduced them into my tank with some snail/hermits i brought in from the ocean.
CHubbs