Have two IDs for you guys

The first picture is something on my rock. It started out as four on one rock and today I noticed four more on another rock near it. They look exactly like the picture, just some white rock blotches with a slight dome shape.

The second are some new zoas I got, just curious their name.

 

Nerite snail eggs and I've seen the zoas, but forget their name. Very nice though!

 

Duh, why did I not think of snail eggs! All of my nerite snails have been hanging out on the rocks where they are which was odd. Usually during the day most of them are hanging out behind my skimmer and along the waterline. Thank you.

Do the newborn snails usually survive in a tank or become quick food?

 

Eagle Eye Zoas, pretty but not exceptionally rare or coveted.

 

The eggs aren't likely to hatch in tank conditions. They're tidal snails and tanks don't have tidal conditions.

 

Thank you guys