Tenebrio molitor
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Our Red Giants are fed an oil based vegetable dye to give them a pink color that is more visible to fish in the water. Our dyes are certified for use in foods, drugs, and cosmetics (FD&C Red #4). While the dye isn't harmful to your reptiles, we prefer that you feed them our all natural Golden Giant mealworms.
Most customers who choose Rainbow Mealworms do so because our regular mealworms are all natural, and so feeding a naturally raised giant mealworm is a perfect choice.