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How to Care for a Regal Jumping Spider Egg Sac: A Complete Guide

Jumping spiders, especially regal jumping spiders (*Phidippus regius*), make captivating pets for arachnid enthusiasts. If you’re lucky enough to find yourself caring for a regal jumping spider egg sac, you’re about to witness one of nature’s most fascinating processes. Here’s a step-by-step guide on how to care for a regal jumping spider egg sac, from spotting the sac to ensuring the spiderlings are healthy and ready for their next stage in life.




1. Spotting the Egg Sac

Regal jumping spider mothers are diligent and protective of their egg sacs, often creating a safe enclosure in a cozy, concealed spot. You’ll notice the sac is a small, round, white ball, typically attached to the side of the enclosure or nestled in a silk retreat.


If you see the egg sac, avoid disturbing the mother or moving the sac itself, as this could cause unnecessary stress or even cause her to abandon it. Allow her to continue her natural behaviors, as she will usually stay close to guard and care for her eggs.


2. Maintaining Optimal Conditions

Regal jumping spiders need specific conditions to thrive, and the egg sac is no exception. The proper environment includes:


-Temperature: Keep the enclosure between 75-80°F (24-27°C). This warmth is essential for healthy egg development.

- Humidity: A slight increase in humidity, around 60-70%, will help keep the sac in good condition. To achieve this, mist one side of the enclosure lightly every few days, avoiding direct contact with the sac itself to prevent mold.

- Ventilation: Proper airflow is essential to prevent mold and keep the air fresh. Make sure the enclosure has small ventilation holes, and consider using a well-ventilated enclosure designed for jumping spiders.


3. Letting Nature Take Its Course

After laying the egg sac, the mother will likely remain near it, watching over her eggs until they hatch. During this period, avoid handling her or moving the enclosure excessively, as it may distress her. Try to refrain from feeding her large meals, as she may not be as active or hungry. Smaller feeder insects, like fruit flies, are ideal if she does show interest in food.


4. Preparing for Spiderlings (Hatchlings)

Regal jumping spider eggs typically take around 2-3 weeks to hatch, although this can vary slightly depending on environmental conditions. Once spiderlings begin to emerge, you’ll see tiny, white, translucent bodies appear in the sac. They may stay near the sac for several days, absorbing nutrients from their yolk reserves. During this time:


- Avoid feeding** them immediately, as they don’t require food for the first few days.

- Keep up with humidity and avoid direct misting.


5. Separating the Spiderlings

After about a week, the spiderlings will start to wander and explore. At this stage, it’s crucial to separate them into individual enclosures to prevent cannibalism, which is common among jumping spiders.


Here’s how to do it safely:

- Use small containers**: Enclosures such as small deli cups, condiment containers, or spiderling-specific enclosures are perfect.

- Gentle Transfer**: Carefully guide each spiderling into its new home using a fine, soft brush or by gently encouraging them to walk onto a piece of soft material. Avoid direct handling, as spiderlings are delicate.

- Consistent Feeding**: Offer them small prey items like flightless fruit flies or pinhead crickets every 3-4 days. Ensure the prey size matches the tiny size of the spiderlings.


6. Long-Term Care

Once each spiderling is in its own enclosure, continue to provide food and water at intervals. Remember to clean out the containers regularly and watch for signs of growth, molting, and hunting behavior.


Spiderlings grow fast and will need new enclosures as they mature. This is an exciting time, as you’ll get to observe the natural behaviors of jumping spiders up close!


Final Thoughts

Caring for a regal jumping spider egg sac and the resulting spiderlings is incredibly rewarding. By maintaining proper conditions and patiently watching over these tiny lives, you’re setting the stage for healthy and active spiders. Each step in the journey, from egg sac to spiderling, is a fascinating experience that truly showcases the wonder of the animal kingdom.


Enjoy the journey, and happy spider parenting!

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