I have had a constant battle with trying to rid my tank of snails. They came unexpectedly when I bought some plants and I cannot seem to get them completely gone. They are the small snails with about 3 or 4 different shape shells. Just yesterday I did a 30% watch change and cleaned the gravel and picked about 30 out of my 55gallon tank, then today I took out 12 more I found. I do have 1 clown loach that is about 1.5 inches long at this time but I don't think he is doing anything to help. Please help!!!