Large Silkworms for Sale
Large silkworms run about 1″ to 1.5″, the largest size we offer. They are the larvae of the silk moth Bombyx mori, and they suit larger reptiles. Silkworms are soft-bodied and easy to digest, high in protein, and low in fat, so they make a strong staple or a nutritious treat. TC grows them in a Houston silkworm lab with clean breeding, free of toxic chemicals, parasites, and disease.
The Largest Size
Large worms fit adult bearded dragons, larger chameleons, and other bigger insectivores. So they suit animals that have outgrown the medium size. Because silkworms are counted by hand, sizes are approximate.
Match the Size to the Animal
Large silkworms are sized for bigger animals, so feed them only to reptiles that can handle them. A good rule is to keep prey no wider than the space between your animal’s eyes. For smaller animals, choose the medium or small size instead.
A Soft, Nutritious Feeder
Silkworms have no hard shell, so they digest easily and carry a low impaction risk. That suits picky eaters and pets recovering or needing to rehydrate. Many reptiles take them even when refusing other feeders, so they earn a regular place in the diet.
Calcium and Variety
Silkworms have a better calcium balance than crickets or mealworms, one of the few feeders that come close to a healthy ratio. So many keepers feed them without dusting. Even so, vary the diet and lightly supplement for fast-growing or breeding animals, and feed silkworms as part of a rotation since they are high in moisture.
Care
Keep silkworms at room temperature, not in the refrigerator, since cold harms them. Keep them with their chow, since they ship with only 2 to 3 days of food. Large worms eat faster, so buy more chow to hold them. Cared for well, a batch lasts about a month.
Best For
- Adult bearded dragons and larger chameleons.
- Other larger insectivores and big appetites.
- Picky eaters and recovering animals.
- Keepers who want a soft, nutrient-dense feeder.
Not Best For
- Small or young animals, which suit the small or extra small size.
- Mid-sized animals, which suit the medium size.
- Long cold storage, since silkworms cannot be refrigerated.
Recommended Add-Ons
- Pre-made Silkworm Food to keep and grow your silkworms.
- Medium Silkworms for mid-sized animals.
- Small Silkworms for younger animals.
- TC Calcium Ultra Fine for light supplementation when needed.
- Live Silkworms to browse all sizes, food, and eggs.
Frequently Asked Questions
What size are large silkworms?
They run about 1″ to 1.5″, the largest size. They suit larger reptiles like adult bearded dragons and larger chameleons.
Are silkworms nutritious?
Yes. They are soft and easy to digest, high in protein, low in fat, and have a favorable calcium balance, so they make a strong staple or treat.
Can I feed large silkworms to a small animal?
No. Match prey to your animal’s size, and use the medium or smaller size for smaller animals.
How do I keep them?
Keep them at room temperature, not in the fridge, since cold harms them. Keep them with chow, and buy more since large worms eat faster.
Do I need to dust silkworms?
Less than most feeders, since silkworms have a good calcium balance. Still, vary the diet and lightly supplement for fast-growing or breeding animals.
Learn More About Silkworms
These sources cover silkworm nutrition and biology.
- Insects (MDPI): Nutritional Value of Silkworms. A scientific review of silkworm protein, fat, and mineral content.
- NCBI: Diet and Silkworm Composition. Research on how the rearing diet shapes a silkworm’s nutrition.
- Bombyx mori Overview. A reference on the domesticated silk moth and its life cycle.
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