Can Crested Geckos Eat Dubia Roaches? Safety, Prep & Frequency

Dubia roaches are one of the best feeder insects available for crested geckos — high in protein, soft-bodied, and far less likely to injure or stress your gecko than crickets. Offer gut-loaded, calcium-dusted nymphs once or twice a week alongside a quality crested gecko diet (CGD) powder for a balanced nutritional profile.

How to Prepare

1. Gut-load dubia roaches for 24–48 hours before offering them: fill their enclosure with fresh collard greens, carrots, squash, and a commercial gut-load formula. An empty roach transfers almost no nutrition to your gecko.
2. Match roach size to your gecko — select nymphs no wider than the distance between the gecko's eyes. For most adult crested geckos, medium nymphs (0.5–0.75 in) are ideal; juveniles under 15 g need small nymphs (0.25–0.5 in) or micro-feeders instead.
3. Dust roaches lightly with a calcium + vitamin D3 powder immediately before placing them in the enclosure. Because dubia roaches carry a calcium-to-phosphorus ratio of roughly 1:3, supplementation is mandatory — not optional — to prevent metabolic bone disease.
4. Place roaches in a smooth-sided feeding cup or ceramic dish so they cannot scatter and hide in substrate. Remove any uneaten roaches within 30–45 minutes; loose roaches left overnight can bite sleeping geckos and elevate stress.

Warnings

• Never feed roaches larger than the gecko's eye-width gap — oversized prey can cause gut impaction or regurgitation in smaller animals.
• Always dust with calcium + D3 every feeding; the raw Ca:P ratio of dubia roaches (~1:3) is calcium-deficient and will cause long-term metabolic issues if left uncorrected.
• Source roaches only from reputable feeder breeders — bait-shop stock and wild-caught insects carry parasites, pesticide residues, and unknown pathogens.
• Cap each feeding at 3–5 roaches for adults; a diet chronically high in animal protein is associated with hepatic lipidosis and gout in captive crested geckos.
• Dubia roaches are illegal to keep in Florida and several other US states due to invasive-species laws — confirm legality in your jurisdiction before purchasing.

Nutrition Facts

FAQ

How many dubia roaches should I feed my crested gecko per session?

Offer 3–5 appropriately sized nymphs per session for adults, and 2–3 for juveniles. Insects should supplement — not replace — a quality CGD powder, which the Association of Reptile and Amphibian Veterinarians (ARAV) recommends as the dietary staple making up 70–80% of caloric intake per week.

Can hatchling crested geckos eat dubia roaches?

Not immediately. Wait until the gecko reaches approximately 10–15 g body weight before introducing the smallest dubia nymphs. Hatchlings and very young juveniles are better started on fruit flies (Drosophila hydei) or pinhead crickets to eliminate choking and impaction risk entirely.

Are dubia roaches better than crickets for crested geckos?

For most keepers, yes. Dubia roaches are silent, nearly odorless, cannot jump, are far less likely to bite, and carry lower pathogen loads than house crickets (Acheta domesticus). Their softer exoskeleton also reduces impaction risk compared to the hard chitin of crickets. The main downside is legal restrictions in some US states.

Do I need to gut-load dubia roaches if I buy them from a breeder?

Yes, always — even from reputable breeders. Shipping stresses roaches, depleting their gut contents. A 24–48-hour gut-load in your own enclosure with leafy greens and a commercial insect diet restores nutrient levels and hydration, maximising the nutritional transfer to your gecko at feeding time.

My crested gecko ignored the dubia roaches — is that normal?

Yes. Many crested geckos are reluctant to take prey that moves differently from what they're accustomed to, especially geckos raised exclusively on CGD. Try offering roaches at dusk when the gecko is most active, use a small feeding tong to animate the roach slightly, or fast the gecko from CGD for one night before the live-insect session to increase motivation.

More Crested Geckos Foods

• Can crested geckos eat grapes?
• Can crested geckos eat strawberries?
• Can crested geckos eat blueberries?
• Can crested geckos eat apples?

Other Reptiles & Dubia Roaches

• Can leopard geckos eat dubia roaches?
• Can veiled chameleons eat dubia roaches?

Sources

• ARAV Reptile and Amphibian Husbandry Guidelines
• ReptiFiles — Crested Gecko Diet & Feeding Guide