I have Clown Loaches in my big planted tank, so there are no snails in there. The problem is in the 20 gallon guppy tank. I can't put loaches in there. That's why I was asking whether these Amano shrimp would eat snail eggs. I most certainly do not want to use any chemicals to kill the snails. Picking them out by hand every day is rather tedious. :( G. Kadar