I have had so many snail eggs in my tank I swear it a breeding ground fortunately all my fish except my lawnmower Blennie love the eggs and as soon as they appear they become fast food literally....

More like sushi bar :P

They may not be eaten I've got many different sizes of nassarius snails in my tank from all of the eggs laid by the couple original snails.

Mine are still there and the fishes didn't seem to have noticed it yet. Clever snails I guess :P