Quick response:
1.Mixed reviews about bettas eating mystery snails. some do, some don't.
2. they do not eat live plants; they only eat rotting/decomposing material (and veggies).
3. If you only have 1, they will not breed on their own. If you want more than 2, and they do breed, they hang the eggs above the water, so you could discard of the sac if you wanted to.
4. mine took about a month two get to 2-1/2 inches, which is nearing full size.
5. I love mystery snails. They're cute little characters and they will destroy any algae population you have. And it's fun to feed them zucchini slices.
