Can anyone help me identify this?

[fishy27]

This started to form on a couple pieces of my live rock. They are small greyish white flat circles about the size of this :splitspin maybe a little smaller.
There are about 20 in total. Anybody know what they are?

 

[tosiek]

snail eggs forgot which though.

 

[noodleman]

do they move around? could be limpets

 

[fishy27]

No they stay in the same spot. Is limpets a good thing or bad? Thanks evrybody for the help.

 

[Mr. Softy]

Nerite snail eggs.

 

[fishy27]

Is there more than one eggs uner each disk? Also is there anything I can do to for them? Thanks again

 

[crox99]

Yep nerite snail eggs.

 

[Mr. Softy]

Is there more than one eggs uner each disk? Also is there anything I can do to for them? Thanks again

Leave them be. I believe each one is a single egg.

 

[fishy27]

Thanks for the photos crox99, that is deffinetly them. Thanks everybody for your help.