Emperor Scorpion Nutrition Guide: Optimal Diet and Feeding Schedule
Everything you need to know about feeding your Emperor Scorpion, from dietary requirements and portion sizes to supplements and foods to avoid.
BLUF: Emperor scorpions (Pandinus imperator) are carnivorous insectivores that do best on a varied diet of appropriately sized feeder insects (crickets, Dubia roaches, mealworms, silkworms) provided on a life-stage–adjusted schedule, with routine gut-loading and targeted mineral supplementation to prevent calcium imbalance and support healthy molting. Feed juveniles more frequently (daily to every-other-day) and adults less often (once or twice weekly), always provide fresh water, and consult your veterinarian if you see weight loss, failure to molt, or other health issues.
Dietary needs and the nutritional science behind feeding Emperor Scorpions
Emperor scorpions are opportunistic carnivores whose nutritional needs are met primarily by animal protein and fat. In the wild they consume insects, other arthropods and occasionally small vertebrates; in captivity, a diet of high-quality feeder insects that are gut‑loaded (fed nutritious food before being offered) will supply the macronutrients and micronutrients scorpions need.Key nutritional principles:
- Protein and fat: Adult maintenance diets should be high in protein (roughly 50–70% of dry matter in many feeder insects) and moderate in fat. Proteins supply essential amino acids for tissue maintenance and development; fats supply energy. Over-reliance on high-fat feeders (e.g., waxworms, superworms) increases obesity risk.
- Minerals (calcium and phosphorus): Insects routinely have low calcium relative to phosphorus; many feeder insects provide Ca:P ratios well below the recommended ~2:1 used for insectivore health. A low dietary Ca:P can impair cuticle formation and increase risk of poor molting. Aim to feed a gut-loaded insect that brings the Ca:P closer to 1.5–2:1 and supplement externally (see supplements section).
- Vitamins: Water-soluble vitamins are generally supplied by a varied, gut-loaded insect diet. Fat-soluble vitamins (A, D3, E) can be supplemented in low-frequency dosing; be cautious with vitamin D3 to avoid hypervitaminosis.
- Chitin: Insect exoskeleton (chitin) is non-digestible fiber that helps gut motility but is not a nutritional substitute. It is normal and expected in insectivores.
- Gut-load feeder insects for 24–72 hours prior to feeding to maximize nutrient transfer (many keepers use 24–48 hours as a practical window).
- Target a Ca:P ratio approaching 1.5–2:1 in the total diet (gut-loaded insects + dusting).
- Monitor body condition and molting: scorpions that fail to molt cleanly or that show lethargy/weight loss may have nutritional or husbandry deficits—consult your veterinarian experienced in invertebrates.
Safe foods, treats, and foods to avoid (practical lists and comparisons)
Emperor scorpions accept a wide range of feeder insects. The safety and nutritional quality of those feeders varies. Below is a practical comparison of commonly used feeders and a concise safe/unsafe checklist.Feeder comparison table (typical adult portions and notes):
| Feeder type | Typical adult portion per feed | Pros | Cons / Notes |
|---|---|---|---|
| Dubia roaches (Blaptica dubia) | 1–3 medium (2–4 cm) | High protein, good fat profile, low flight risk, hardy | Require dedicated colony |
| Crickets (Gryllus spp.) | 3–6 medium | Widely available, high activity stimulates hunt | Noisy, may carry parasites if wild-caught |
| Mealworms / Superworms | 2–6 (size-dependent) | Readily accepted, energy-dense | Higher fat; use sparingly |
| Silkworms / Waxworms | 3–6 (treats) | Highly palatable, good for picky feeders | Very high fat (waxworms) — treat only |
| Earthworms | 1–3 (large) | Good moisture content, protein | Potential for soil-borne contaminants unless farmed |
| Pinky mice (rare treat for large adults) | 1 small | High protein and fat for large adults only | Can be too fatty; risk of obesity, not necessary |
- Use captive-bred feeder insects (crickets, Dubia roaches, mealworms, silkworms) from reputable sources.
- Gut-load insects with high-calcium, nutrient-rich diets 24–72 hours prior to feeding.
- Dust prey with calcium powder as indicated in the supplements section.
- Provide fresh water in a shallow dish and offer a moist hide (damp sphagnum or vermiculite) to maintain humidity.
- Wild-caught insects: risk of pesticides, parasites, and unknown toxins.
- Fireflies and certain beetles (blister beetles): toxic to many predators.
- Pesticide-exposed insects (from lawns, sheds, or outdoor areas).
- Large centipedes or predatory arthropods: can injure or kill scorpions.
- Frequent fatty feeders (e.g., waxworms) as staple diet — use only as occasional treats.
- Human foods: fruits, dairy, processed foods are not appropriate—scorpions are carnivores and will not gain balanced nutrition.
Portion sizes, feeding frequency, and a practical feeding schedule
Feeding frequency and portion size must be tailored to life stage, size, activity level and environmental conditions. Below is a practical guideline based on typical growth and maintenance phases for Pandinus imperator. Use body condition (plumpness vs. emaciation) as a primary guide and adjust accordingly.General life-stage guidelines:
- Neonates / first instars (0–2 months): Feed tiny prey items (pinhead crickets, flightless fruit flies, newly hatched silkworms) once daily. Offer prey items that are about 20–50% of the juvenile’s body length.
- Juveniles (2–12 months): Feed small prey every 24–48 hours. Offer 2–4 pinhead/small crickets or 2–3 small roach nymphs per feeding.
- Subadults (12–24 months): Feed every 48–72 hours. Offer 2–4 medium crickets or 1–3 medium Dubia roaches per feeding.
- Adults (≥24 months): Feed 1–2 times per week (every 4–7 days) depending on temperature and activity. Offer 2–4 medium-large Dubia roaches or 3–6 crickets per feeding. Large adults may take larger prey items but avoid prey bigger than the scorpion’s carapace/body width.
| Life stage | Frequency | Typical prey examples | Notes |
|---|---|---|---|
| Neonate (0–2 mo) | Daily | Pinhead crickets, fruit flies | Small prey 20–50% body length |
| Juvenile (2–12 mo) | Every 1–2 days | Small crickets, roach nymphs | Monitor growth; increase size every few weeks |
| Subadult (12–24 mo) | Every 2–3 days | Medium crickets, Dubia nymphs | Prep for adult feeding regimen |
| Adult (≥24 mo) | 1–2× weekly | 2–4 medium/large Dubia, 3–6 crickets | Reduce frequency in cool temps; watch for obesity |
- Prey should not be longer than the body (excluding tail); ideal prey size for adults is roughly 25–75% of body length depending on prey robustness.
- Avoid offering many high-fat items. For example, waxworms or superworms should make up <10% of total feedings per month.
- If scorpion wastes prey or ignores food for several feedings, remove uneaten prey to prevent stress and substrate contamination.
- Digestion and appetite are temperature-dependent. At cooler temps (<22°C/72°F), scorpions may stop feeding or digest slowly—reduce feeding frequency accordingly.
Supplements, molting, hydration, and special considerations
Supplements: Because insects often have low calcium, supplementing is prudent—especially for growing juveniles and molting scorpions.- Calcium dusting: Lightly dust prey items with a calcium powder (calcium carbonate or calcium citrate) once every 1–2 feeds for juveniles and once weekly for adults. Use a “light dust” technique (toss prey in a small container with a pinch of powder and shake).
- Vitamin/mineral supplements: Use a comprehensive reptile/invertebrate multivitamin very sparingly—approximately once every 2–4 weeks. Avoid daily multivitamin dusting unless directed by an exotics veterinarian.
- Vitamin D3: Because many scorpions are kept without UVB and obtain vitamin D through diet, low-frequency D3 supplementation can be beneficial—but excess D3 causes toxicity. Use D3-containing supplements only at veterinarian guidance or use calcium without D3 as the main powder.
Molting considerations:
- Scorpions often stop feeding in the 1–2 weeks before a molt. Do not force-feed during this period.
- Ensure high humidity (70–80%) and hydration going into a molt to reduce the risk of stuck or incomplete molts.
- After a molt, wait 3–10 days (depending on size and activity) before offering prey; newly molted scorpions have soft exoskeletons and are vulnerable.
- Failure to molt properly can indicate mineral imbalance, dehydration, or substrate/humidity issues—consult your veterinarian if molts are consistently problematic.
- Provide a shallow water dish with fresh water changed daily; adults readily drink from a dish.
- Maintain a moist hide (damp sphagnum or peat) to support humidity and aid in molting.
- Dehydration may present as lethargy, sunken appearance, or poor molting.
- Red flags: prolonged anorexia (>2 weeks in an adult), progressive weight loss, abnormal or stuck molts, lethargy, visible injuries or parasites.
- For any concerning signs, or to create a tailored supplementation plan, consult your veterinarian—ideally one with exotics/invertebrate experience.
- Feed a variety of high-quality, captive-bred feeder insects gut-loaded for 24–72 hours; adults typically eat 1–2 times weekly, juveniles daily to every other day.
- Supplement to correct calcium deficits: dust prey weekly for adults and more frequently for juveniles; use multivitamins sparingly and avoid routine high-dose vitamin D3 without veterinary guidance.
- Avoid wild-caught insects, toxic species (fireflies, blister beetles), and overuse of high-fat feeders (waxworms) to prevent toxins and obesity.
- Support proper molting with consistent humidity, hydration, and nutrition; with molting or feeding problems, consult your veterinarian experienced in exotic invertebrates.
- Track feedings, monitor body condition and molt success, and adjust prey size/frequency based on life stage and environmental temperature.
Frequently Asked Questions
How often should I feed my Emperor scorpion at different life stages?
Feed juveniles daily to every-other-day because they grow quickly and need more protein; adults do best on a reduced schedule of once or twice weekly. Always offer appropriately sized feeder insects and adjust frequency by monitoring body condition and activity; owners often search "how often to feed an adult Emperor scorpion" for a feeding schedule reference.
What feeder insects are best for Emperor scorpions and is mealworm dangerous for Emperor scorpion?
Best staples include crickets, Dubia roaches, silkworms and appropriately sized waxworms or young mealworms; variety is important for balanced nutrition. Mealworms can be fed occasionally but not as a sole staple because of their tough exoskeleton and higher fat content, and you should avoid wild-caught or pesticide-exposed prey; some owners search "is mealworm dangerous for Emperor scorpion" when deciding inclusion frequency.
Do Emperor scorpions need calcium or vitamin supplements and how do I prevent calcium imbalance?
Gut-loading feeder insects and offering a targeted calcium supplement (light dusting) a few times a month supports healthy molting without causing imbalances. Avoid excessive multi-mineral dusting and phosphorus-rich supplements, provide fresh water, and monitor molts closely; many owners query "should I dust my Emperor scorpion with calcium" when starting supplementation.
How much should I feed an adult Emperor scorpion and will overfeeding cause problems (how much does it cost to feed one)?
Offer 1–3 appropriately sized feeder insects per feeding for adults on a once- or twice-weekly schedule, adjusting portions for condition and activity level. Overfeeding can lead to obesity and molting complications, so monitor weight and reduce portions if needed; searches like "how much does it cost to feed an Emperor scorpion" are common, with monthly cost varying by feeder type but generally modest.
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References & Citations
Parts of this article reference data from allpets.ai.
Reviewed by: AllPets Veterinary Advisory Board on July 2, 2026