What Is Tarantula Molting?
Molting is the process where a tarantula sheds its exoskeleton to grow. This is one of the most critical—and vulnerable—periods in a tarantula’s life.
All tarantulas molt throughout their lives, but frequency depends on age and species.
Signs Your Tarantula Is About to Molt
Recognizing premolt is essential for proper care.
Common signs include:
- Refusal to eat
- Lethargy or reduced movement
- Darkening or dull abdomen
- Bald spots becoming darker
- Increased webbing or sealing off burrow
👉 This stage can last days to weeks
The Molting Process
When the molt begins:
- The tarantula flips onto its back
- The old exoskeleton splits
- The tarantula slowly pulls itself free
⏱ This can take anywhere from 30 minutes to several hours
⚠️ Do NOT disturb during this process
Is It Dead or Molting?
This is one of the most common beginner concerns.
👉 A tarantula on its back is usually molting—not dead.
Intervening can kill the animal.
After the Molt
Post-molt, the tarantula is extremely fragile:
- Fangs are soft and unusable
- Exoskeleton needs time to harden
Wait before feeding:
- Slings: 3–5 days
- Juveniles: 5–7 days
- Adults: 7–14 days
Common Molting Problems
Stuck Molt
- Often caused by low humidity
- Can be fatal
Limb Loss
- Occurs if the molt goes wrong
- Often regenerates in future molts
How to Support a Healthy Molt
✔ Maintain proper humidity
✔ Provide fresh water
✔ Avoid feeding during premolt
✔ Do not handle
Final Thoughts
Molting is a natural and necessary process—but also the most delicate phase of a tarantula’s life.
Understanding it properly dramatically increases survival and long-term success.

