Unknown eggs / growth

[Jshoji]

Hi everyone
Could I please ask for some help identifying what looks like eggs on the underside of a rock.

Tank residents include - 2 clownfish, 1 bicolor blenny, 1 mandarin goby, 3 nassarius, 1 strombus and 2 turbo snails.

 

[hds4216]

Did you use live rock or dry rock when you set up the tank?

 

[Jshoji]

Live rock

 

[ca1ore]

Not clowns. Snails probably.

 

[Jshoji]

Not clowns. Snails probably.

Thanks for the input. I don’t think it’s snails because the underside is inaccessible to them.