I have two golden mystery snails in my 55 gallon planted tank. They are an inch tall and little over an inch long. At first I had very little trouble with them and they seemed to do a good job cleaning. I added 2 cory and 5 shrimp to help clean the bottom. Then I noticed some of my plants were being damaged by the snails. They went after some jungle vale, anachris and moneywort. I added more food at feeding time and picked up Tetra cory wafers and pleco algae wafgers and added those. At first the snails seemed happy but now one has stripped a hornwort plant completely and half of another. I caught him red handed and put the snail into my empty forty gallon tank that I just started. Then this morning I found a new moneyworth plant I had just planted a few days ago destroyed. All that was felt on the bottom of the tank was the metal band and a few striped stems. The leaves were floating in the tank. I have put plenty of food on the bottom in fact it is getting a little messy and I plan on doing a good vacuuming later today. Any suggestion? I am tempted to try making some escargot, I heard it is delicious.