Are they in a fish tank or in a pond? I had mine in three different tanks and can see them grow or die... While I gave many away, many had died also. I did have about 20 that grew to adult size but eventually they all died. I had them for a few years. Sorry to hear that yours 'disappeared'. They are fun to watch but it was a lot of work keeping the tanks clean. I don't have anymore fish tanks. I have moved onto goats now. We are expecting two in a week. I am considering some geese but...two goats and a dog will keep me busy enough.
Good luck. If you still have the adult snails, you'll have more egg batches... Thanks for the update!
Good luck. If you still have the adult snails, you'll have more egg batches... Thanks for the update!