What happens when a tarantula doesn't eat?

When a tarantula doesn't eat, it can enter a state of starvation, which may lead to weight loss and weakened health. Depending on the duration of the fasting period, it may eventually become lethargic and more susceptible to diseases. Tarantulas can survive for weeks to months without food, as they have a slow metabolism, but prolonged periods without nourishment can ultimately be fatal. If a tarantula refuses food, it may be a sign of stress, molting, or environmental issues.