The Best Feeders for Leopard Geckos: A Keeper's Diet Guide (Discoids, Dubia, Crickets & More)

I've fed a lot of leopard geckos over the years, and the question I get more than any other is some version of "what should I actually be putting in the bowl?" Usually it comes from someone who's been handed five contradictory answers — crickets because that's what the pet store sells, mealworms because they're easy, dubia because a forum said so, discoids because their friend in Florida swears by them — and they just want to know which one is right.

The honest answer is that no single feeder is "the best," and anyone who tells you otherwise is selling something. What's best is a staple feeder you can rely on, rotated with a few supporting players, all sized correctly and dusted properly. But within that framework, some feeders are clearly better staples than others, and the soft-bodied roaches — discoids and dubia — sit at the top for good reasons. This guide walks through every common feeder, what it's actually good for, how they stack up head to head, and exactly how to build and run a leopard gecko's diet from juvenile to adult.

I'm also going to correct a few things that get repeated constantly in care articles — including the very source material this guide grew out of — because getting them wrong can genuinely hurt your animal. The biggest one: no, discoid roaches do not have a favorable calcium-to-phosphorus ratio. Almost no feeder does. We'll get there.

How a leopard gecko's body actually uses food

Leopard geckos (Eublepharis macularius) come from the arid and rocky scrublands of Afghanistan, Pakistan, and parts of northwestern India. They are strict insectivores — unlike bearded dragons or many other lizards, they eat no plant matter at all. Everything they need comes from live invertebrates, which makes feeder choice and supplementation far more consequential than it is for an omnivore. There's no salad to fall back on if the bugs are nutritionally thin.

Four things drive every feeding decision you'll make:

• ◆Protein builds and maintains muscle and fuels their day-to-day activity. This is the backbone of the diet, and it's why high-protein feeders make the best staples.
• ◆Fat is energy storage. A leopard gecko stores fat in its tail — a fat, plump tail is a sign of a healthy, well-fed gecko. But too much dietary fat, fed too often, tips straight into obesity and fatty liver disease. Fat is a lever you manage, not maximize.
• ◆Calcium is the one that quietly destroys geckos when it's wrong. It builds and maintains bone, and a chronic shortfall causes metabolic bone disease (MBD) — soft, deforming bones, weakness, tremors, and eventually death. MBD is one of the most common and most preventable killers of captive reptiles.
• ◆Vitamin D3 is calcium's partner. Without adequate D3, a gecko can't absorb the calcium it eats, no matter how much you provide. They get D3 either from UVB lighting or from a D3-containing supplement.

The reason supplementation matters so much is that feeder insects, on their own, do not deliver this balance. They're protein-rich and often fat-rich, but they're almost universally short on calcium relative to phosphorus — which is the exact opposite of what bone health needs. The University of Florida's veterinary and entomology resources, and the Merck Veterinary Manual's reptile nutrition section, both make the same point: captive insectivore diets must be corrected for calcium through gut-loading and dusting, or metabolic bone disease follows. Keep that frame in mind through every feeder below — the bug is the delivery vehicle; what you load into it and dust onto it is half the meal.

The calcium-to-phosphorus myth (read this before anything else)

Here's the single most important correction in this entire guide, because it's repeated in countless care articles and it's flat wrong.

You will read — including in the article this guide is based on — that discoid roaches have a "favorable" or "balanced" calcium-to-phosphorus ratio. They don't. Like nearly every commercial feeder insect, discoids are phosphorus-heavy: they contain substantially more phosphorus than calcium, often by a ratio of several to one. Reptiles need roughly the inverse — about 1.5 to 2 parts calcium for every 1 part phosphorus — to maintain bone. When phosphorus dominates, it actually interferes with calcium absorption, compounding the problem.

This is true of discoids, dubia, crickets, mealworms, superworms, and waxworms alike. The one notable exception among common feeders is black soldier fly larvae (BSFL), which genuinely do carry a favorable calcium ratio thanks to their naturally high calcium content. Everything else needs help.

Why does this matter so much? Because the myth gives people permission to skip dusting. They read "discoids have great calcium" and figure gut-loading is enough. Then six months later they've got a gecko with rubbery legs and a kinked spine. Dusting feeders with calcium is not optional for any of these insects, no matter how well you gut-load them. Gut-loading improves what's in the insect's gut; it cannot rewrite the mineral content of the insect's own body. You do both, every time, for the gecko's whole life.

Now, with that settled, let's go through the feeders.

The staples: soft-bodied roaches

If you take one practical recommendation from this guide, it's that a soft-bodied roach should be the foundation of your leopard gecko's diet. Both discoids and dubia fit the bill, and they're close enough nutritionally to be interchangeable. The choice between them usually comes down to legality and breeding speed, not nutrition.

Discoid roaches (Blaberus discoidalis)

Discoid roaches are a tropical species native to Central and South America, and they've become the workhorse feeder of the southern US. Here's what makes them a great staple:

• ◆Strong protein, moderate fat. Discoids run roughly 20–25% protein and about 5–7% fat as-fed, with high moisture (~60–65%). That's an excellent staple profile — enough protein to drive growth, not so much fat that they pad out a sedentary adult.
• ◆Soft bodies, low chitin. Their exoskeleton is relatively soft and low in chitin, the indigestible structural compound in insect shells. That makes them gentle on a gecko's digestion and lowers impaction risk — a meaningful advantage over harder-bodied mealworms, especially for juveniles or geckos recovering from illness. (Note: you'll occasionally read that discoids have a thicker shell than dubia. In practice both are soft, low-chitin roaches; the difference is negligible and discoids are not a problematic feeder on digestibility.)
• ◆They don't climb smooth walls. This is the trait keepers love. Adult discoids can't grip smooth glass or plastic, so a dropped roach can't scale the tank wall and escape into your house. They also don't fly. Crickets, by contrast, jump, climb, and vanish behind the furniture.
• ◆Quiet and odorless. A healthy roach colony is nearly silent and nearly smell-free — a world away from a cricket bin.
• ◆Excellent gut-loaders, and breedable at home. Discoids take to gut-loading readily, and a colony will sustain itself in captivity, which makes them economical if you keep multiple animals.

The one real caveat — and it's a legality advantage — is that discoids are legal in Florida, where dubia are restricted. For Florida keepers especially, discoids aren't just a good choice; they're the practical one. When I need to start or top up a colony, I source from a feeder supplier that keeps clean, well-started stock; All Angles Creatures stocks healthy discoid roaches sized from small nymphs for juvenile geckos up to adults. If you want the full breeding-and-husbandry playbook, I wrote a complete guide to keeping discoid roaches alive and producing.

One myth to retire while we're here: discoids are sometimes described as "fast and agile" escape risks. They're a touch quicker on their feet than dubia, but since neither climbs smooth surfaces, neither is a meaningful escape risk inside a tank or a smooth-walled feeding container. Don't let "agile" scare you off them.

Dubia roaches (Blaptica dubia)

Dubia are the other top-tier staple, and nutritionally they're a near-twin of discoids: high protein (~20–23%), moderate fat (~7–9%), low chitin, soft-bodied, quiet, and odorless. They share the no-smooth-climbing advantage. What sets them apart:

• ◆They breed faster. Dubia are more prolific than discoids and ramp a colony to harvestable numbers sooner. If you're breeding your own and live somewhere dubia are legal, that's a genuine convenience.
• ◆They're slower-moving. Dubia are sluggish compared to discoids. That makes them easy to handle and contain, but a slow, motionless roach is also less likely to trigger a gecko's hunt-and-strike instinct. Some geckos ignore a dubia that's sitting still, where the steadier crawl of a discoid keeps their attention.
• ◆They're restricted in some places. The same Florida rules that permit discoids prohibit dubia. That single fact decides the matter for a lot of keepers.

My rule of thumb: in dubia-legal areas, either roach is excellent — pick on price and availability. In dubia-restricted areas (Florida especially), discoids are the obvious staple and you give up essentially nothing.

The supporting cast: crickets, worms, and treats

A staple roach should make up the majority of the diet, but variety matters — it covers nutritional gaps, prevents picky eating, and keeps feeding interesting for the gecko. Here's where the other feeders fit.

Crickets

Crickets are the default pet-store feeder, and they're not a bad food — they're a decent protein source with moderate fat and they're highly active, which strongly triggers a gecko's hunting response. For a gecko that's gone off its food, the frantic movement of a cricket often gets a strike when a sedate roach won't.

The downsides are practical rather than nutritional. Crickets are loud (males chirp, especially when warm), they smell if their bin isn't cleaned often, they die fast, and they escape constantly — they jump and climb, so a few always get loose and end up chirping behind your couch at 2 a.m. They can also bite a gecko's skin if left in the enclosure uneaten, causing stress or injury, so never leave loose crickets in overnight. And like everything else, their calcium-to-phosphorus ratio is poor — dust them.

I treat crickets as an excellent variety and appetite-stimulant feeder rather than a staple. The movement is their superpower; the husbandry headaches are why they're not my foundation.

Mealworms

Mealworms are the convenience feeder. They're cheap, they store for weeks in the refrigerator (which slows their metabolism), and they don't escape or make noise. That convenience is real and it's why so many keepers default to them.

But they make a poor staple. Mealworms have a hard, chitin-rich exoskeleton that's tougher to digest and carries a higher impaction risk, particularly for juveniles. They also tend to run fatter and less nutritionally balanced than a roach. They're a perfectly good rotation item for a healthy adult — just not the food I'd build a baby gecko's diet on, and not the thing to feed exclusively.

Superworms

Superworms are larger, livelier mealworm relatives with a better protein-to-fat ratio than mealworms — but they're still a fatty feeder (often around 15% fat) with a hard head capsule. Their wriggling is great hunting stimulation for an adult gecko, and they're a fine occasional item. But the fat content makes them a treat, not a staple — fed too often they drive obesity and fatty liver. I offer them to adults now and then, never to juveniles as a routine food, and always dusted.

Waxworms

Waxworms are pure indulgence — soft, white, sweet-smelling larvae that are roughly half fat. Geckos love them, which is exactly the problem. Fed regularly they cause obesity fast and turn geckos into picky eaters that refuse healthier food while holding out for candy. Their legitimate uses are narrow and real: fattening up an underweight, sick, or recovering gecko, or coaxing a non-eater to take something. Outside those cases, they're an occasional once-in-a-while treat at most.

Hornworms

Hornworms (the larvae of the tobacco hornworm moth) are mostly water — around 85% moisture — with low fat and modest protein. That makes them a fantastic hydration treat, especially for a gecko that's a bit dehydrated, constipated, or shedding poorly. They're soft and very digestible. They can't carry a diet on their thin protein, and they grow fast (so buy them small and use them quickly), but as an occasional hydrating supplement they're excellent.

Silkworms and black soldier fly larvae (BSFL)

Two more worth knowing:

• ◆Silkworms are soft-bodied, high in protein, low in fat, and well-liked by geckos — a genuinely nutritious treat or rotation item. They're more perishable and pricier, but a quality addition.
• ◆Black soldier fly larvae (BSFL) — also sold as "calciworms" or "phoenix worms" — are the one feeder with a naturally favorable calcium-to-phosphorus ratio. They're the exception to the dusting rule (though dusting them does no harm). They're small, so they suit juveniles and as a calcium-rich variety item they're hard to beat. They're the answer to "is there any feeder that doesn't need calcium dusting?" — and the answer is basically just these.

Feeder comparison: the numbers side by side

Here's how the common feeders stack up. Treat these as approximate, as-fed figures — real values swing with diet, life stage, and source — but the relationships between feeders are reliable, and those relationships are what should drive your choices.

The takeaways that actually matter for a keeper:

• ◆Discoids and dubia are nearly interchangeable and both make excellent staples. Choose between them on legality and breeding speed, not nutrition.
• ◆Everything in this table except BSFL is phosphorus-heavy and must be calcium-dusted. That's the rule, not the exception.
• ◆Superworms and waxworms are fat bombs — treats, not staples. Waxworms especially.
• ◆Hornworms and silkworms are water and softness — great for hydration and variety, useless as a sole protein source.
• ◆A staple roach + rotated variety beats any single feeder. That's the whole strategy in one line.

Discoids vs. dubia vs. crickets: the head-to-head

Since these three are what most keepers are actually choosing between for an everyday feeder, here's the plain comparison:

• ◆Nutrition: Discoids and dubia tie and both edge out crickets slightly on protein and digestibility. All three need calcium dusting.
• ◆Legality: Discoids win in restricted states (Florida). Dubia lose there; crickets are legal everywhere.
• ◆Containment: Discoids and dubia win big — neither climbs smooth walls or flies. Crickets escape constantly.
• ◆Smell and noise: Discoids and dubia win — quiet and odorless. Crickets are loud and smelly.
• ◆Hunting stimulation: Crickets win (frantic movement), discoids are a strong second (steady crawl), dubia trail (slow and easy to ignore).
• ◆Breeding at home: Dubia win (fastest), discoids second, crickets are hard to colony and usually bought as needed.
• ◆Availability: Crickets win (every pet store). Roaches are mail-order or specialty in many areas.

My bottom line: a soft-bodied roach as the staple, crickets in the rotation for variety and to keep a finicky eater engaged. In Florida, that staple is discoids, full stop. Elsewhere, discoid or dubia is a coin-flip — pick on price and what your gecko actually strikes at.

Gut-loading: making the feeder worth eating

Gut-loading means feeding your feeders a nutritious diet for 24–48 hours before they go to your gecko, so the insect's gut is packed with good nutrition at the moment it's eaten. It's half of how you get real nutrition into an animal that only eats bugs.

What to gut-load with:

• ◆Leafy greens — mustard greens, collard greens, dandelion greens, kale. These are calcium-forward and a good base.
• ◆Vegetables — carrots, squash, sweet potato, for beta-carotene and moisture.
• ◆Fruit in small amounts — apple, a little orange — for moisture and palatability. Don't overdo it.
• ◆A commercial gut-load formula designed for feeder insects, for steady protein and balanced minerals.

What to avoid: spinach and other high-oxalate greens, which bind calcium and work against you, and anything salty, oily, or processed. Wash produce to remove pesticide residue.

A practical detail people miss: a starved feeder is an empty feeder. If you buy crickets and they sit in a bare cup for three days with nothing to eat, you're feeding your gecko a hollow shell. Keep feeders fed and hydrated right up until you offer them.

Dusting and supplementation: the part that prevents MBD

Gut-loading is step one; dusting is step two and it's non-negotiable. You put the feeders in a cup or bag with a pinch of supplement powder and gently toss to coat them lightly, then feed immediately. A quick mist of water on the feeders first helps the powder stick.

A standard supplementation schedule for a leopard gecko:

1. ◆Plain calcium (no D3) — at most feedings. This is the everyday supplement that prevents calcium deficiency.
2. ◆Calcium with D3 — once or twice a week if the gecko has no UVB lighting. D3 lets the gecko absorb calcium; if it gets D3 from UVB instead, scale the D3 powder back to avoid oversupplementation. Don't stack heavy D3 dusting and strong UVB.
3. ◆Multivitamin — about once a week, for the broader spectrum of vitamins and trace minerals diet alone misses.

Many keepers also leave a small dish of plain calcium powder in the enclosure so the gecko can self-regulate and lick a little when it wants. That's a reasonable backstop, not a replacement for dusting.

The reason I keep hammering this: metabolic bone disease is common, devastating, and almost entirely preventable with correct calcium and D3. If you do nothing else right, get this right.

Feeding by life stage: schedules and sizing

How much and how often changes as a gecko grows.

The golden sizing rule

No feeder should be wider than the space between the gecko's eyes. Oversized prey is the leading cause of impaction and choking — genuinely dangerous, especially for juveniles. When in doubt, go a size down.

Juveniles (hatchling to ~10–12 months)

Growing geckos are protein machines. Feed them:

• ◆Daily. Offer as many appropriately-sized feeders as they'll eat in a 10–15 minute window — often 5–8 small feeders.
• ◆Small, soft, staple feeders. Small discoid or dubia nymphs, small crickets, BSFL. Avoid hard mealworms and large prey at this stage.
• ◆Dust with plain calcium at nearly every feeding, plus the weekly multivitamin and D3 schedule above. Growing bone is hungriest for calcium.

Adults (~12 months and up)

Growth slows, and the risk shifts from underfeeding to obesity:

• ◆Every 2–3 days, typically 4–6 feeders per session.
• ◆Staple roach plus rotated variety. A few discoids or dubia as the base; crickets for engagement; an occasional superworm or a hornworm mixed in.
• ◆Watch the tail and belly. A healthy adult tail is plump but not bulging wider than the neck. If the gecko is getting heavy, cut frequency and drop the fatty treats; if it's thin, add a feeding or a couple of fatty items short-term.
• ◆Keep dusting — adults need calcium too, just at a slightly lower overall feeding volume.

Breeding females and recovering geckos

Breeding females draw heavily on calcium to form eggs and need extra calcium and a higher feeding rate during the season. Underweight, ill, or recovering geckos benefit from temporary use of fatty feeders — waxworms, superworms — to put weight back on quickly, then back to the normal staple-based diet once condition recovers.

How to actually offer the food: feeding methods

What you feed is only half of it; how you put it in front of the gecko changes how much gets eaten, how much gets wasted, and how much risk you take on. Three methods, and I use all three depending on the situation.

• ◆Tong or tweezer feeding. You hold the feeder with soft feeding tongs and wiggle it in front of the gecko. This is my default for most feeders, especially worms. It lets you control exactly how much the gecko eats, prevents feeders from escaping into the substrate, eliminates the risk of an uneaten cricket biting the gecko overnight, and lets you keep a precise count. The downside is it takes your time and attention, and a shy gecko may not strike at first. Use silicone-tipped tongs, not metal points near the gecko's face.
• ◆Bowl feeding. A smooth-sided dish holds non-climbing, non-jumping feeders — roaches and mealworms work, crickets escape — so the gecko can hunt at its own pace. Great for roaches and worms, keeps feeders out of the substrate, and reduces accidental substrate ingestion. It won't work for crickets, and a very sedentary feeder sitting in a bowl may not trigger a hunting response.
• ◆Free-range (loose in the enclosure). You drop feeders in and let the gecko chase. This gives the most natural hunting stimulation and exercise, which is genuinely good enrichment, but it carries the most risk: feeders hide in décor, crickets bite a sleeping gecko, and a gecko striking at prey on loose particulate substrate can swallow that substrate. If you free-range, do it on a solid or bioactive substrate, and remove any uneaten feeders before lights-out.

For juveniles and any gecko I'm monitoring closely, I lean on tong or bowl feeding so I know exactly what went in. For a confident adult on safe substrate, a bit of supervised free-ranging is good exercise.

Impaction and substrate: the avoidable emergency

Impaction — a blockage of the gut — is one of the most common serious problems leopard gecko keepers face, and feeder choice plays straight into it. Two causes dominate:

1. ◆Feeders too large or too hard. Prey wider than the gap between the eyes, or hard-shelled feeders like mealworms and superworms fed to small geckos, can lodge in the gut. This is the single best reason to staple soft, correctly-sized roaches and to keep hard worms occasional.
2. ◆Swallowed substrate. A gecko striking at a feeder on loose substrate — sand, fine particulate, walnut shell — can ingest a mouthful of it. Over time that accumulates and blocks the gut. This is why I avoid loose particulate substrate for geckos that free-range feed, and why bowl or tong feeding is safer.

Signs of impaction include a gecko that stops pooping, goes off food, looks bloated, strains, or shows a visible firm lump along the belly. It's a veterinary issue — a warm soak and gentle belly massage can help mild cases, but a true blockage needs a reptile vet. The whole point is prevention: soft feeders, correct size, smart substrate, supervised feeding. Get those right and impaction essentially disappears from your worry list.

Hydration: the indirect job feeders do

Leopard geckos come from arid country and rarely drink from a standing water bowl, though you should always offer one. In practice, a lot of their water comes from their food. This is where moisture-rich feeders earn their place — hornworms (~85% water) and silkworms are effectively hydration on legs, and well-hydrated roaches and crickets carry water too.

This is also why gut-loading feeders with moisture-rich produce matters beyond nutrition: a feeder packed with squash and greens delivers water along with everything else. A gecko showing signs of mild dehydration — sticky shed, sunken eyes, a stuck toe-shed, sluggish behavior — often perks up with a few hornworms and a humid hide. Don't rely on the water bowl alone; build moisture into the diet, especially in dry homes and during shedding.

When a gecko won't eat: a feeding troubleshooter

A leopard gecko going off its food is the most common panic I hear about. Work the likely causes in order before assuming the worst:

• ◆Temperature first, always. Leopard geckos are ectotherms and can't digest properly if they're too cool. They need a warm side around 88–92°F (31–33°C) with a cooler retreat. A cold tank shuts down appetite and digestion completely. Check your warm-side temperature with an actual thermometer before changing anything about the food.
• ◆Stress and newness. A newly-acquired gecko, or one whose enclosure, location, or routine just changed, often refuses food for days to a couple of weeks. Give it quiet, leave it alone, and offer food every day or two without fuss.
• ◆Shedding. Many geckos won't eat right before a shed. Wait it out; appetite returns after the skin comes off.
• ◆Boredom or pickiness. A gecko fed one feeder forever can simply lose interest, or hold out for treats if it's been overfed waxworms. Switch feeders — offer a lively cricket or a wiggling worm on tongs to re-trigger the hunting instinct. Movement is the lever.
• ◆Brumation. In cooler months, some geckos naturally slow down and eat less (a light brumation). As long as weight is stable and the gecko is otherwise healthy, reduced winter appetite can be normal.
• ◆Illness. If temperatures are right, there's no shed coming, the gecko isn't new, and it's losing weight or showing other symptoms (lethargy, discoloration, weight in the hips/tail dropping), it's time for a reptile vet. Persistent refusal with weight loss is not something to wait out.

The pattern: fix the environment and reduce stress before you fix the food. Nine times out of ten a "won't eat" gecko is too cold, mid-shed, or recently moved — not sick.

Wild diet vs. the captive bowl

It's worth remembering what we're approximating. In their native scrubland, leopard geckos are opportunistic nocturnal hunters eating a rotating, varied mix of whatever invertebrates are active — beetles, spiders, various roaches and crickets, larvae, the occasional small invertebrate. They never eat a monodiet of one insect species, and they get exercise hunting across rough terrain.

Two lessons fall straight out of that. First, variety isn't a luxury, it's the natural state — rotating feeders mimics the wild intake and covers nutritional bases no single bug can. Second, a little hunting is good for them — supervised chasing of feeders is enrichment that a bowl of motionless mealworms doesn't provide. You're not just filling a stomach; you're recreating, as best you can in a tank, the varied, active foraging the animal evolved to do.

The environmental and ethical angle

A point the original article raised that's worth keeping: feeder choice has a footprint, and roaches come out well on it. Discoids and dubia are efficient to raise — they convert relatively little food, water, and energy into a lot of feeder biomass compared to crickets, and a home colony produces almost no waste and requires no shipping once established. They're also non-invasive in most climates and can't establish wild populations where it's too cold for them, which limits ecological risk.

On the welfare side, how feeders are raised and killed is getting more attention from thoughtful keepers. Sourcing from suppliers that keep their colonies in decent conditions — proper food, not wildly overcrowded — is both an ethical choice and a practical one, because stressed, poorly-kept feeders are less nutritious and more likely to carry problems. Buying locally-raised or breeding your own also cuts the carbon and stress of shipping live insects across the country. None of this needs to be agonized over, but if it matters to you, a home roach colony is about the lowest-impact way to feed an insectivore.

Cost, convenience, and breeding your own

For a single gecko, buying feeders as needed is cheap and simple, and the math barely matters. Where it shifts is when you keep several animals or want full control over feeder quality: then breeding your own roach colony turns a recurring cost into a near-free, self-renewing supply.

Roaches are the realistic feeder to colony at home — they're hardy, low-maintenance, quiet, odorless, and they breed steadily in a simple bin with heat, ventilation, and food. Crickets are far harder to sustain and most keepers just buy them. If you go the colony route, dubia ramp fastest where they're legal, and discoids are the choice in restricted states. Either way, start the colony bigger than you think you need and leave it alone for 4–6 months before harvesting hard, or you'll eat your breeding stock before it reproduces. The full mechanics — heat, humidity, enclosure, harvesting, troubleshooting — are in my discoid roach keeping guide.

A note on sourcing: whatever you buy, buy from a supplier that keeps clean, healthy colonies. Weak, mite-ridden, or wild-caught feeders can carry parasites or pathogens, and roaches from a reputable breeder are far lower-risk than wild insects or poorly-kept stock. It's worth paying slightly more for feeders that are genuinely well-started and healthy.

So which feeder is best for a leopard gecko?

Here's the whole thing in a paragraph. The best staple is a soft-bodied roach — discoids if you're in Florida or anywhere dubia are restricted, discoid-or-dubia by preference everywhere else. Build the diet on that: high protein, moderate fat, easy to digest, quiet, escape-proof. Rotate in crickets for variety and to keep a picky gecko striking, BSFL for a real calcium boost, and hornworms and silkworms as hydrating treats. Keep superworms and especially waxworms as occasional treats only — they're too fatty for daily use. Size every feeder to the gap between the gecko's eyes, gut-load 24–48 hours out, and dust with calcium every feeding (plus D3 and a multivitamin on schedule), because every feeder here except BSFL is phosphorus-heavy and will cause metabolic bone disease if you don't.

Do that, and "which feeder is best" stops being an anxious question and becomes a simple routine: a reliable staple, a little variety, calcium on top, sized right. That's the entire game.

Want to go deeper on the feeder comparisons? See my breakdowns on optimizing your leopard gecko's diet with discoids vs. other feeders and whether dubia or discoid roaches are healthier, or browse the full exotic animal care library.