Q&A for How to Breed Waxworms

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  • Question
    Who discovered that wax worms eat plastic?
    Community Answer
    Scientists at Stamford University have found out that waxworms can eat polyethylene (the plastic in carrier bags).
  • Question
    How can I make my wax worms grow larger in diameter?
    Community Answer
    The less crowded the waxworms are, the larger they can grow. This won't usually make a huge difference, though. Make sure you bought greater waxworms (Galleria mellonella), not lesser waxworms (Achroia grisella).
  • Question
    Can adult wax worms fly?
    Community Answer
    Yes, wax moths can fly.
  • Question
    What can you feed them?
    Community Answer
    The waxworms do not need any food besides the "bedding" described in the article.
  • Question
    Are fruit flies in the waxworm containers harmful?
    Community Answer
    They are annoying, but they are herbivores and cannot harm your waxworms.
  • Question
    Do the worms need an additional source of moisture for drinking?
    Community Answer
    No, not really.
  • Question
    How do waxworms get water if they're in dry bedding?
    Community Answer
    Honey has water in it. The oats may feel dry to us, but basically anything edible has a small content of water in it. The moths get all of the moisture they need from the bedding.
  • Question
    My kit came with a breeder block for laying eggs, but the block has a fine tan fuzz on it. What is this and what do I do about it?
    Community Answer
    This is probably mold. If the moths haven't emerged yet, remove the block and consider transferring the cocoons to a fresh container. If the eggs are already on the block, line the sides of the container with several sheets of newspaper to absorb moisture (which mold loves).
  • Question
    How long should/does it take for the bedding to harden? I left it in a ventilated spot, but it hasn't hardened after a few days.
    Community Answer
    Local conditions like humidity and air pressure matter. Use a dehumidifier or blow dryer to speed up the process.
  • Question
    How do I stop them from spinning so I can sell them?
    Community Answer
    If you keep the larva you wish to sell in the refrigerator they will not pupate.
  • Question
    Is the glycerin mentioned in the article a vegetable glycerin?
    Community Answer
    Yes, it is. You shouldn't use anything else as it could be harmful to your waxworms.
  • Question
    When I checked on my worms this morning, it looked as if all of them were dead. Only one moved when I poked it. I think I might have suffocated them, but I'm not sure. Any suggestions?
    Community Answer
    If all of them are dead, you might have to start over with the breeding process and get new wax worms.
  • Question
    Is it possible to own waxworms without having them breed?
    Community Answer
    You can remove the cocoons before the moths emerge, but then the population will not replenish itself naturally.
  • Question
    Can I feed my waxworms leafy greens, like kale or spinach?
    honeyy 157
    Community Answer
    Yes.You can feed your waxworms almost any vegetable, fruit, or leafy green. Just make sure to give them plenty of variety so they get all the right nutrients.
  • Question
    What is the reason for not breeding the living black-colored waxworms?
    Community Answer
    It’s advised not to breed them because black/dark brown wax worms are dead or dying. A living and healthy waxworm should be a cream/beige color.
  • Question
    At what temperature is it too cold to breed waxworms?
    Community Answer
    Most waxworms will not pupate below 60° F. If you wish to feed them to pets, this temperature or lower is ideal for storing them. They will not eat during this period. Otherwise, try to keep them above 70°F.
  • Question
    Can reptiles and sugar gliders eat moths?
    Community Answer
    No, do not feed reptiles any form of moth, as some may be poisonous, and this can result in death.
  • Question
    How long does it take the eggs to hatch?
    Community Answer
    For greater waxworms, eggs hatch in about 3 days. Lesser worms take about 7 days.
  • Question
    How long does it take waxworms to turn into moths from the cocoons?
    Community Answer
    10-60 days depending on temperature. Warmer = faster. It also depends on the kind of waxworm.
  • Question
    Will waxworms stay alive in the fridge?
    Community Answer
    Yes, but only if you put them in the fridge door, as the main area of a refrigerator is too cold for them.
  • Question
    Can I use wax moths to feed fish in an aquaponic system?
    Community Answer
    As long as the fish eat food from the bottom of the tank, and they are large enough, they should be able to.
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