Mealworms are the larval stage of the darkling beetle, scientifically known as Tenebrio molitor. They are a favored food choice for numerous small or juvenile reptiles, amphibians, and arachnids, such as leopard geckos and tarantulas. Our pre-packaged mealworms offer a hassle-free option for hobbyists seeking an alternative to loose or bagged feeders. They are also ideal for pet stores and resellers looking for a neatly presented product. These small mealworms measure around 1/2" long. Nutritional Breakdown: Moisture Content — 61.9% Protein Content — 18.7% Fat Content — 13.4% Ash Content — 0.9% Fiber Content — 2.5% Storage Guidelines: Store mealworms in a refrigerator at temperatures between 42 and 50 degrees Fahrenheit. This keeps them dormant and in optimal condition for up to a month. Before feeding, sprinkle lightly with calcium powder for added nutrition.