Depends what plants youve got. Tropical plants will tolerate the same sort of temp as tropical fish will. Id get rid of the snail if I was you and wash your plants really well B4 adding. Theyre nigh on impossible to get rid of once you have them.i have a yellow snail that came with the plants
its a pretty big one do u think thats a free pond???
BTw wat temperature do plants prefer?? do they prefer warmer waters than fish?