How to Breed Mealworms: 9 Steps

Mealworms are versatile insects that serve as an essential food source for reptiles, birds, fish, and small mammals. They are high in protein and easy to breed for a reliable supply. Whether you’re a pet owner, hobbyist, or an entrepreneur looking to enter the mealworm market, follow these nine steps to successfully breed mealworms.
1. Prepare the breeding container: Select a plastic or glass container with a lid that is well-ventilated. The proper size depends on the number of mealworms you are planning to breed – generally, a 5-gallon container is adequate for most needs.
2. Set up substrate: Mealworms thrive on dry substrates like wheat bran, oatmeal, or cornmeal. Fill the container with 2-3 inches of substrate and make sure it remains dry throughout the breeding process.
3. Introduce adult mealworms: Purchase adult mealworms from reputable suppliers or select healthy ones from your existing stock. Introduce them into the prepared container and allow them to move within the substrate freely.
4. Provide a food source: Place small slices of potato, carrot, or apple inside the container for moisture and nutrition. Replace them every few days to prevent mold growth.
5. Maintain optimal temperature: Mealworms reproduce best at temperatures between 75°F and 85°F (24°C – 29°C). Keep your breeding container in an area with these temperatures for a higher breeding success rate.
6. Monitor their life cycle: Mealworms go through four stages—egg, larva (the actual mealworm), pupa, and adult beetle. The process takes approximately 10-12 weeks for completion but may vary depending on temperature conditions.
7. Separate pupae from larvae: To prevent cannibalism among your colony and protect future generations from being eaten by their brethren, isolate pupae from larvae by removing them and placing them in a separate container.
8. Allow beetles to emerge: Once the pupae have transformed into beetles (approximately 7-10 days), return them to the main breeding container to continue the reproduction process.
9. Harvest your mealworms: After reaching an adequate size, you can begin harvesting mealworm larvae to feed your pets or sell. To do so, simply use a fine mesh strainer to separate them from the substrate, rinse any residue, and dry before storing or using them as food.
By following these nine steps, you’ll be able to breed mealworms successfully and maintain a renewable source of high-quality protein for your pets or business.


