Feeding your bearded dragon can feel a little confusing, especially when it comes to live insects like Dubia roaches. Many new owners wonder if it’s safe to leave the roaches in the tank or if doing so could cause problems.
Yes, Dubia roaches can be left in a bearded dragon tank only for short feeding times. Leaving roaches unchecked for too long can lead to stress, hiding, or a mess. Always dust insects with calcium and gut-load vegetables.
In this guide, we’ll explore the dos and don’ts of leaving Dubia roaches in the enclosure, along with practical tips every dragon owner should know.
Dubia roaches (Blaptica dubia) are a popular feeder insect for reptiles. They’re prized because they’re nutritious, quiet, slow-moving, and (unlike crickets) unlikely to bite or chirp. Their protein and fat profile makes them an excellent staple feeder for bearded dragons when properly gut-loaded and dusted.

Yes, Dubia roaches are one of the best staple feeders for bearded dragons. They are quiet, don’t bite, and provide steady nutrition. Bearded dragons enjoy hunting them, which adds enrichment to feeding time.
Unlike crickets, they don’t smell bad or jump everywhere. With proper gut-loading and calcium dusting, Dubia roaches keep your dragon healthy, strong, and full of natural energy.
Dubia roaches have an excellent nutritional profile for reptiles. They’re high in protein, moderate in fat, and rich in calcium, making them healthier than many feeder insects.
Their soft bodies are easy to digest, even for young bearded dragons. When gut-loaded with fresh vegetables, Dubias pass important vitamins and minerals along. This makes them a reliable, well-balanced feeder choice for daily use.
Generally, Dubia roaches are less problematic than crickets. They don’t bite and are poor climbers (on smooth surfaces), so immediate physical harm is unlikely.
However, problems can arise if roaches are left for long periods: they can hide, die, and create a mess, become food for mites/fungi, or—under the right conditions—even reproduce inside the enclosure, creating a hygiene issue. For these reasons, leaving them unattended is risky.
Here are the practical risks to your dragon and your home:
- Stress and Sleep Disturbance: Dubias are nocturnal and may crawl over your dragon at night, potentially stressing them.
- Hiding & Escape: Uneaten roaches can hide in decor and be impossible to find later. Hidden roaches create an ongoing mess and breeding chances.
- Sanitation Problems: Dead roaches, exoskeletons, and frass (insect droppings) add to bacterial load; this increases cleaning needs and may raise infection risk.
- Potential for Breeding in the Tank: If conditions (temperature, humidity, food) are favorable and both sexes reach maturity, colonies can establish and reproduce. That’s undesirable.
- Parasite/Pathogen Concerns: Wild or poorly-kept feeders can carry parasites. While Dubias from reputable sources tend to be clean, any live insect left in the substrate can increase exposure risk.
Best practice: offer live Dubias in a controlled, shallow dish or feeding container inside the tank for short supervised sessions — typically 10–30 minutes — then remove uneaten insects. This minimizes hiding, stress, and mess. Some keepers allow short free-roam “hunt” sessions while they watch, but unattended, overnight, or indefinite freedom is not advised.
Yes — in moderation. Live prey stimulates hunting behaviour, exercise, and mental enrichment. Allowing your dragon to hunt small numbers of Dubias under supervision can encourage natural foraging and make feeding time more interesting. But enrichment should be balanced with safety and hygiene: short, monitored sessions are the best compromise.

Follow this routine to get the benefits and avoid the downsides:
- Choose the right size. Feed young dragon nymphs or pinheads; adults can take larger sizes. Avoid insects that are too big to swallow safely.
- Gut-load the roaches. Feed nutritious produce (carrots, leafy greens, fruit) 24–48 hours before feeding so the roaches pass nutrients to your dragon.
- Dust appropriately. For juveniles, dust feeders with calcium (no D3 daily) and a multivitamin schedule per your vet’s guidance. Adults need less frequent dusting.
- Use a shallow feeding dish or Tupperware. Place roaches in a container that prevents escape but allows the dragon to hunt. This reduces hiding.
- Set a timer (10–30 minutes). Supervise feeding. Remove and return uneaten roaches to their colony (or dispose of them humanely) after the time limit.
- Clean the area. Remove leftovers, frass, and droppings after feeding time to keep the enclosure sanitary.
If one or two escape into the décor, act calmly:
- Search common hiding spots: behind hides, under rocks/logs, in substrate crevices, under décor. Dubias prefer dark, sheltered places.
- Temporarily increase light and decrease hiding: during search, turn on enclosure lights (keeps roach moving) and gently shake décor into a container to check for insects.
- If you can’t find it, it will often die in a few days if conditions aren’t right, or be consumed by your dragon. Still, check and clean thoroughly within a week. Avoid panicked, destructive dismantling — be systematic.
Yes — important comparisons:
- Crickets are noisy and more likely to bite, potentially stressing or injuring a resting dragon, and pose a higher risk of escape and chewing on wounds. Many keepers avoid leaving crickets in the viv.
- Mealworms/superworms: higher fat content and sometimes harder to digest; refrigerated storage required for longevity. Not ideal as a staple.
- Dubias: quiet, less aggressive, good protein-to-fat ratio, and relatively clean. For these reasons, Dubias are widely considered one of the best regular feeder insects for bearded dragons.
Use this checklist to keep your dragon safe and your home roach-free:
- Feed in a separate shallow container inside the viv or in an external feeding tub.
- Remove uneaten roaches within 10–30 minutes.
- Keep the colony enclosed in proper tubs with smooth walls and ventilation (not in the viv).
- Monitor temperature/humidity — tanks that are warm and humid can promote roach breeding. Maintain normal bearded dragon temperatures, but avoid providing roaches with ideal breeding conditions in the vivarium.
- Routine cleaning: daily spot cleaning + weekly substrate/hide cleaning reduces infection risk.
- Source feeders responsibly: buy Dubias from reputable breeders to minimize wild-caught pests or pathogens.
Contact a reptile vet if you notice:
- Unexplained weight loss after switching feeders or repeated feedings.
- Skin lesions, bites, or infections that could have caused by feeder insects.
- Persistent stress behaviors (refusal to bask, hiding, glass-scratching) that begin after live feeder sessions.
- Signs of infestation in your enclosure (large numbers of insects emerging, continual dead roaches, or mold growth).
If you’re seeing repeated problems, stop leaving live feeders in the viv, switch to supervised feedings in a separate container, and perform a deep clean of the enclosure.

You should only leave Dubia roaches in a bearded dragon’s tank for about 10–30 minutes while your dragon is eating. After that, remove any leftovers. Leaving them too long may cause stress, lead to hidden issues, or result in sanitation problems. Supervised feeding is always the safest choice.
It’s not a good idea to leave Dubia roaches in the tank after feeding time. They might hide under decorations, crawl at night, or even die in the enclosure. This creates stress and extra mess. Always remove uneaten roaches once your bearded dragon has finished eating.
Leopard geckos can eat Dubia roaches safely, but you shouldn’t leave the insects in their tank overnight or for long periods. Roaches may hide, die, or create waste. Instead, please place them in a dish or supervised space and remove leftovers when your gecko finishes eating.
Dubia roaches cannot climb smooth glass or plastic, which makes them easier to keep in tubs or dishes. However, they may grip rough surfaces, silicone corners, or decorations inside a reptile enclosure. Always use secure containers and smooth-sided walls to stop them from escaping.
Dubia roaches live much longer than crickets. Nymphs can take four to six months to reach adulthood, and adults may live another year under good care. Their long lifespan makes them a reliable feeder insect, as you can keep a steady colony without frequent replacements.
Dust Dubia roaches with calcium at most feedings for babies, and a few times weekly for adults. Add vitamins weekly.
Short, supervised free-roaming helps enrichment, but never leave Dubias loose overnight. They hide, stress your dragon, and create a mess. Always remove leftovers afterward.
Use smooth-sided tubs with secure lids. Keep enclosures clean, dry, and free from food scraps. Always remove uneaten roaches after feeding.
Yes, but only short supervised hunts. Leaving them too long causes hiding, stress, and mess. Remove extras once your dragon finishes eating.
No, avoid leaving bugs in the tank overnight. They may hide, bite, or die. Always supervise feedings and remove uneaten insects.
Baby dragons eat Dubias daily for growth. Adults need them only a few times weekly, balanced with fresh vegetables and occasional fruits.
Keep Dubias in a ventilated plastic tub with egg crates, dry food, and water crystals—store at warm room temperatures for health.
Dubia roaches live months in proper containers. Nymphs grow into adults within six months, and adults may live another year with care.
Avoid loose substrate, sharp decor, live bugs overnight, or toxic plants. Stick to safe flooring, hides, basking areas, and dragon-friendly decorations.
Baby dragons need daily bugs for growth. Adult dragons eat more vegetables, needing insects only a few times per week for protein.
Dubia roaches are one of the best feeders you can offer your bearded dragon, but how you use them truly matters. Leaving roaches in the tank too long can cause hiding, stress, or sanitation problems, even though they don’t bite or climb glass. The safest approach is short, supervised feeding sessions with properly gut-loaded and dusted roaches. This way, your dragon gets the full nutrition and natural hunting enrichment without the risks. By balancing safety, cleanliness, and variety, you’ll keep your bearded dragon healthy, happy, and thriving.