White sacs/pods identification help

[captexas]

Within the past 2 weeks these small white sacs/pods have appearred on some of my live rock and even on some of the snail/hermit crab shells. The only think I added to my tank around that time were cerith snails, nerite snails, 2 emerald crabs, and a fighting conch from reeftopia. Any ideas of what these things are? Are they eggs of some sort? Any help is appreciated! :D

I was going to post a picture, but what happened to that function?

[captexas]

No, they are actually on the rocks and shells. They are small, solid white and flat. They are round, but no spiral shape are anything like that. Kind of weird. My tank has been doing all kinds of bad things lately. Hopefully these aren't bad.

[rocketeer]

I think I have that too. They look kind of like round sesame seeds. And my purple coraline is dying around them.

[captexas]

Well I posted on Reef Central to Dr. Ron and even though their stupid site wouldn't let me post my basic picture either, he sent be a reply based on my description. He said they are probably nerite snail eggs as I added them right before the white sacs appeared. Hopefully that is what they are!

[rocketeer]

Did you ever find out what those are?

Jack