I'm taking care of my roommate's 11 giant African snails for a week and it turned out that they have been depraved of necessary heat and space to move for months.
They are now, and have been for months, living at average temperature 18 °C instead of 25 °C. Anyway, how can I warm up a glass terrarium with only soil at the bottom and 11 giant African snails in it?
Any suggestions will be much appreciated!
Best regards.