Found this unwanted intruder oozing along my glass after I got some live plants . . .so far he's the only one I've seen and if he is the only one in there was just gonna let him be . . .does anyone know if this snail will get much bigger and/or be a danger to the fish? Sorry for the picture, best one I could get, to give an idea of the size he's only about 1/4" long, maybe about half the size of the nail on my pinky finger.

