A few minutes ago, my sister noticed that our gold mystery snail had dropped his shell. He was floating at the top of the tank, hanging on to some hornwart. He's still moving a bit, even extending his breathing tube to the surface. We have him in a small bowl right now, so the other fish can't pick at him.

I'd like to know if he will survive, maybe find a way back into his shell? We've had him for 8 months now, he's gotten to be a good size. We have been putting cuttlebones into the water with him in the main tank so he can get enough calcium to keep his shell pretty healthy. It hasn't been working the best since we got our bristlenose pleco (who gets on the cuttlebone and sucks on it.)

Is there anything we can do for our snail?