Reader Questions – Film Over Shell Opening
This happens when snails go into hibernation (due to cold temperatures) or aestivation (due to dry environment). This is perfectly normal, but it means you may want to look at your tank and whether or not it is warm and humid enough. Your tank should be around 20-29°c, and around 75-90% humidity. You don’t say where you live but if it’s not winter right now then you can try warming the tank up with a heat mat, as well as giving the tank a good misting of water with a spray bottle. If he is still not out of his shell in a few days, you can try giving him a bath to wake him up.