I have a bunch of snails in my 65 gallon tank with a 30 gallon fuge. My clean up crew finds its self some times on its back from falling off a rock. I am not sure if it is the same snail or different. I have saved the snail and righted them maybe four times. Could I have just left them to right themselves or would they have died? They looked like they were completely stuck upside down and would have died??? What you think?