Is it apple snails you have? I'm 99% certain they're not rasbora eggs,
If they are apple snails, you need to get the eggs out of the water; apple snail eggs need to be out of water when they hatch, or the baby snails will drown; they need to be able to take in some air; they drop underwater later.
Popping the leaf into a margarine tub with a tiny layer of water in the bottom floating in the tank would do the trick.