Whoa, horsey, back. What I'm sayiong is I lost some very valuable fish to algae eaters and so I have decided to go with snails instead. I'm just looking for snails that won't eat my swordplants, or reproduce really fast. I bought a twenty gallon tank at a yard sale yesterday that was still set-up, but completely dry. It has a quarter inch of dead pond snail shells on top of the gravel. Venezualan Ramshorns won't do that, and they are quite attractive.