Pond Boss Forums STOCKING A NEW POND Raising Forage and Bait Snails--what's the big deal?

Yes, trapdoor snails may not carry the same parasites as the more common pond snail would. Common pond snails remain small and have thin shells. Trapdoor snails get very large compared to native snails and have much harder shells making them undesirable as a forage to RES except when they are very small.