I find that they produce as fast as the amount of food/waste they are able to consume. In a fish tank, yeah they and MTS will reproduce insanely fast, but in a tank like there where you're not feeding directly to the water column I'd think it would be fine.

I have a half land/half water tank with MTS, Ramshorns, and Bladder snails and all are at manageable levels and keep things in tip top shape. I don't put any food in the water aside from a few cichlid pellets for the amanos I have in there.