Reptile Feeding Schedules: How Often and How Much to Feed by Species
I have kept and fed a long list of reptiles over the years, and the single thing that separates a thriving animal from a struggling one is rarely the brand of food. It is the schedule. How often, how much, and how the feeders are prepped matter more than almost any other husbandry choice you make week to week. This guide lays out concrete cadences and portions for the species people actually keep, plus the supplementation rules that keep bones and organs healthy.
A feeding schedule is not a rigid law. Age, temperature, season, and the individual animal all shift the numbers. But starting from a sane baseline and adjusting from there beats guessing every night.
Why a Feeding Schedule Matters
Reptiles are ectotherms with metabolisms tied to temperature, and most of the species we keep evolved around feast-and-fast rhythms rather than constant grazing. Feed them like a mammal and they get fat. Feed them too little and juveniles stunt and adults waste.
A good schedule does three things:
- Supports steady, even growth in juveniles, which need far more protein and frequency than adults.
- Prevents obesity, fatty liver disease, and the lethargy that comes with both, which are the most common diet problems I see in captive reptiles.
- Mimics the natural feeding rhythm of the species, which lowers stress and keeps hunting instincts sharp.
The first rule that overrides every chart below: adjust to the animal in front of you. A lean, fast-growing juvenile in a warm enclosure burns through food; a sedentary adult in a cooler room does not.
Bearded Dragon Feeding Schedule
Bearded dragons are omnivores, and the ratio of bugs to greens flips as they age. Babies are protein machines; adults are mostly salad eaters that get fat if you keep feeding them like babies.
| Age | Insects | Greens / Veg | Frequency |
|---|---|---|---|
| 0–6 months | Appropriately sized roaches, small superworms | Offer daily | Insects 2–3x per day |
| 6–12 months | Larger insects, fewer of them | Offer daily | Insects 1–2x per day |
| 1+ years (adult) | Insects 2–3x per week | Daily, roughly 80% of diet | Greens every day, insects 2–3x/week |
Portion: For juveniles, let them eat as many appropriately sized insects as they will take in 10–15 minutes, then remove the rest. For adults, cap the insects and lean on a varied salad of leafy greens and vegetables.
Supplementation: Dust insects with plain calcium most feedings and a vitamin/D3 supplement a couple times a week. Even with good UVB, growing dragons need the extra calcium.
My note: Hornworms are a useful occasional feeder here because they are high in moisture and help with hydration, but they are too fatty and watery to be a staple.
Leopard Gecko Feeding Schedule
Leopard geckos are strict insectivores. They do best on a rotation of small, active feeders that trigger their hunt response, and they slow down considerably as adults.
| Age | Feeder Insects | Frequency |
|---|---|---|
| 0–6 months | Small crickets, small mealworms, small roach nymphs | Daily |
| 6–12 months | Crickets, mealworms, small-to-medium roaches | Every other day |
| 1+ years (adult) | Larger crickets, roaches, the occasional superworm | 2–3x per week |
Portion: Offer roughly 2 appropriately sized insects per inch of the gecko's body length per feeding. Whatever they do not eat within 15–20 minutes, pull out, since loose feeders can stress or even nibble a sleeping gecko.
Supplementation: Calcium dusting matters a lot here. Leopard geckos are commonly kept without strong UVB, so they rely on dietary D3 and calcium. Keep a small dish of plain calcium in the enclosure and dust feeders on a regular schedule.
My note: Superworms and waxworms are treats, not staples. They are fatty, and an adult gecko will happily eat itself overweight on them.
Chameleon Feeding Schedule
Chameleons are insectivores that hydrate largely through their food and misting, so moisture-rich feeders earn their place in the rotation.
| Age | Feeder Insects | Frequency |
|---|---|---|
| 0–6 months | Small crickets, small hornworms, fruit flies for the tiniest babies | Twice per day |
| 6–12 months | Crickets, roaches, hornworms | Once per day |
| 1+ years (adult) | Crickets, roaches, hornworms, occasional silkworms | Every other day |
Portion: Feed roughly 4–6 appropriately sized insects per feeding, sized to the chameleon's head. Cup-feeding makes it easy to track exactly how much each animal eats.
Supplementation: Light, frequent calcium dusting without D3, plus a periodic D3 and multivitamin, is the classic chameleon approach. They are sensitive to oversupplementation, so err toward small, regular amounts rather than heavy occasional doses.
My note: Silkworms and hornworms are both excellent low-fat, high-moisture additions for chameleons and pair well with a crickets-and-roaches base.
Crested Gecko Feeding Schedule
Crested geckos are the easy keepers of this list because a quality powdered fruit diet covers the bulk of their nutrition. Insects are an enrichment supplement, not the foundation.
| Age | Diet | Frequency |
|---|---|---|
| 0–6 months | Powdered complete diet, plus tiny insects | Fresh diet most nights |
| 6–12 months | Powdered diet, plus small roaches or crickets | Diet 3–4x/week, insects ~1x/week |
| 1+ years (adult) | Powdered complete diet primary | Diet ~3x/week, insects ~1x/week |
Supplementation: A good commercial crested gecko diet is already balanced, so heavy dusting is not needed. When you do offer insects, a light calcium dusting on roaches or crickets is plenty.
My note: Use insects mostly for enrichment and variety. They are not strictly required if the powdered diet is high quality, but most cresties enjoy the hunt.
Ball Python Feeding Schedule
Ball pythons are the slow metabolizers of the group. They eat whole prey infrequently, and overfeeding is far more common and more damaging than underfeeding.
| Age | Prey Size | Frequency |
|---|---|---|
| Hatchlings | Appropriately sized mouse | Every 5–7 days |
| Juveniles | Larger mouse or small rat | Every 7–10 days |
| Adults | Appropriately sized rat | Every 10–14 days |
Portion and safety: Prey should be no wider than the widest part of the snake's body. Feeding pre-killed or frozen-thawed prey is safer than live, which can bite and injure the snake. Expect food refusals around shedding and during the cooler months; a healthy adult ball python can skip meals for weeks without concern.
General Feeding Guidelines for Any Reptile
A few rules cut across every species above.
Portion and prey size
- No feeder should be wider than the space between the animal's eyes, or the widest part of the body for snakes.
- For time-based eaters like bearded dragons, the standard is to feed what they finish in 10–15 minutes, then remove leftovers.
- Gut-load feeder insects for 24–48 hours before offering them. A roach or cricket fed dark leafy greens and quality grain passes that nutrition straight to your reptile.
Calcium and the phosphorus problem
This is the part beginners most often get wrong. Almost every common feeder insect, including crickets, mealworms, superworms, roaches, hornworms, and silkworms, is phosphorus-heavy with a poor calcium-to-phosphorus ratio. That means calcium has to be added by dusting; you cannot rely on the bug alone. The one mainstream exception is black soldier fly larvae, which are genuinely calcium-rich and the closest thing to a self-balancing feeder. Build a dusting routine: plain calcium most feedings, and a calcium-with-D3 or multivitamin a couple times a week for animals kept without strong UVB.
Signs you are overfeeding
- Steady weight gain past a healthy plateau, plus lethargy.
- Regurgitation after meals, often a sign of prey that is too large or feeding too soon after the last meal.
- Loss of body taper, fat bulging at the limbs or vent, a chunky tail base in geckos.
Signs you are underfeeding
- Weight loss, visible ribs, hip bones, or a thinning tail base.
- Reduced activity and a fading interest in hunting.
- Slowed or stalled growth in juveniles.
When a healthy eater suddenly stops, check husbandry before you worry about the food. Temperature, UVB age, humidity, and a too-cold cool side cause far more hunger strikes than the feeders do. If problems persist, a reptile-experienced veterinarian is the right next step; the Merck Veterinary Manual's reptile nutrition overview is a solid, non-commercial reference for the underlying requirements.
Whatever the species, a reliable feeder supply makes the schedule easy to keep. For staples and variety feeders that fit the cadences above, I keep live feeder insects on hand and rotate them so no animal eats the same bug every day.
For a deeper look at two of the feeders mentioned here, see my guides on whether silkworms can be a staple feeder and discoid roaches versus dubia.