Snails not moving

[deon nyc]

For the pass 48hrs my snails all have not come ony of their shells only 4are moving anyone have any ideas. their are 4 different kind of snauls in the tank and one of each is moving the rest have not even moved

 

[wargalley20011]

We need more information. How long has the tank been established? How long have you had the snails? Is there any food for them to eat? What is the temp, and parameters of your water? Has any died before? What other animals do you have in the tank?