Inactivity
Snails can become inactive for a number of reasons. Lack of humidity, cold or when the snail becomes ill and weak.
Humidity
When a tank is allowed to get too dry, a snail will actually seal itself up to preserve moisture. If you think this is the case click
here.
Some species prefer drier conditions, some wetter so please check the individual
species guides for notes contrary to the usual care advice.
Cold
Snails are cold-blooded and rely on the ambient temperature for heat. This means there is a direct relationship between temperature and activity. Your snails generally will do well between 18°C and 30°C, with the usual average temperature being 20°C to 24°C. However, some species like it colder, some warmer so please check the individual
species guides for notes contrary to the usual care advice.
For more info on improving heat conditions click
here.
Illness
If the solutions above don't work then there is a chance your snail is ill. The following sections may offer more help: