You could even just drop it in the water if you don't want them, or freeze them.
Those are mystery snail eggs, and you will finds hundreds in just one pod. As they grow they will actually eat heads of lettuce withing a couple days, so make sure you want to deal with the amount of poopage and mess. Some selective breeders will crush culls or feed off the babies to crays or fish.
I used to breed them. I found them very hard to ship though.