Lettuce works really well to remove them as well. But in general I have found that ramshorns don't reproduce as quickly as pond snails or MTS. I actually really like ramshorns and have kept them in multiple aquariums, used for food for loaches and my dwarf puffer, without them over running it very easily. Meanwhile I was given a tank that someone had added one MTS to and though I had a DP that I fed every other day a small amount, baited snails, did a lot of water changes and gravel vacuuming I still would find at least 100 MTS that would come out of the gravel at night if I checked the tank. . .