Advertisement My I. mira sling, "Scooter" hasn't eaten in almost 3 weeks now. I know it's not unusual for tarantulas to go on fasting periods or just not eat while in pre-molt. However I don't really know if he is currently in pre-molt or not? He will not eat any of the pre-killed crickets or mealworms I lay there for him. Not sure if I should be concerned or just keep offering him pre-killed prey?