Kymmie, mine did a great job in the 25 gallon and I have not seen another snail in there. In the 60 they made great progress but all of a sudden they took over again. I moved the Assassins from the 25 into the 60 so there are somewhere around 10 in there. I don't know if they are lazy, tired or what. They can't seem to get rid of the ramshorns. The ramshorns are again eating all of my plants. Also, I thought the Assassins were matiing but now I wonder if they are eating each other. I found 2 dead ones. Ugh!
No, it isn't a case of over feeding the tank either. The fish would starve to death before the Ramshorns are out of food as they eat plants. There are more plants then daily food for the other fish. Let me go on record as saying " I really do not like Ramshorn snails"