Pond snail have a population explosion when an aquarium is over fed. Slow down the amount of food you are feeding the aquarium, that is the fist part. Next is capture as many as possible. One trick is to use some sort of small bowl and put food on it, when a bunch of snails are in the bowl, remove the bowl and the snails with it. Repeat this process.
This will not get rid of them all, but if you do this 2-3 times a week, over a month the population will be greatly reduced.
Another Idea is get another aquarium that you can house dwarf puffer fish in, and use the pond snails as food for them!
This will not get rid of them all, but if you do this 2-3 times a week, over a month the population will be greatly reduced.
Another Idea is get another aquarium that you can house dwarf puffer fish in, and use the pond snails as food for them!