has this sort of thing happened to any one ?? i have 2 tanks one i put snails in the other i did not or i should say have not cuz its still new i looked in there today and theres lots of baby snails there ? now the strang thing is this happened befor with anuther of my tanks and the tank was in the same place this one is now ??? so im worryed maby they some thing that should not be in the tank ........i dont no can any typ of snail just apear?.........there has been no snails in this tank befor ether and theres to many of them to have come in of the plants i bort cuz i only have 4 plants in there at the moment cant any one surgest what maby going on here