Discoid Roaches vs. Locusts for Leopard Geckos: The Honest Feeder Comparison

I've kept leopard geckos and bred their feeders for years, and the discoid-roach-versus-locust question is one I get constantly — usually from someone who just read a glowing write-up about locusts and wants to know if they should switch. Here's the short version before the long one: locusts are a genuinely excellent feeder insect on paper, but for the typical keeper in the United States the comparison is mostly theoretical, because locusts are restricted agricultural pests that you can't legally buy or rear here without a federal permit you won't get. Discoid roaches (Blaberus discoidalis) are the staple that actually makes sense for a US leopard gecko.

That legality wrinkle is the single most important thing most comparisons leave out, and it changes the whole decision. But it's not the only thing worth understanding. This guide walks through the real nutrition numbers (with the common myths corrected), the calcium problem that applies to both feeders, how each one behaves in front of a hungry gecko, ease of keeping, cost, and exactly how I'd feed each by the gecko's life stage. By the end you'll know not just which feeder "wins," but why, and how to actually run a leopard gecko's diet around the right one.

What a leopard gecko actually needs from its food

Leopard geckos (Eublepharis macularius) are strict insectivores. Unlike bearded dragons, they don't eat greens or fruit — their entire diet is live invertebrates, so every nutrient they get comes from the bug and from whatever you dust onto it. That makes feeder choice and supplementation more consequential for a leo than for an omnivorous reptile. There's no salad to balance out a bad feeder.

What a healthy leopard gecko diet needs to deliver:

• ◆High-quality protein for muscle, growth, and tissue repair — especially in fast-growing juveniles.
• ◆Moderate, controlled fat. Leos store fat in their tails and obese geckos are extremely common in captivity. You want enough fat for energy, not so much that the tail balloons and the liver suffers.
• ◆Calcium, in the right balance with phosphorus. This is the one that causes disease when it's wrong. Metabolic bone disease (MBD) — soft, deformed bones, tremors, weakness — comes directly from chronic calcium deficiency or an inverted calcium-to-phosphorus ratio. The MSD/Merck Veterinary Manual covers this for reptiles: insectivores need dietary calcium that at minimum balances phosphorus, and feeder insects almost never provide that on their own.
• ◆Vitamin D3 (from supplements or UVB) so the calcium can actually be absorbed and used.
• ◆Moisture, since a lot of a leo's water intake comes from its prey.

Hold onto that list, because it's the scorecard. Every claim about discoids or locusts below comes back to: how much real protein, how much fat, what's the calcium situation, and can you actually get and use the feeder safely.

The big asterisk: locust legality in the United States

Let me put this up front because it reframes everything that follows. Locusts are illegal to import, ship across state lines, or rear in the United States without a USDA permit — and those permits go to research and regulated facilities, not to hobbyist reptile keepers.

Here's why. The insects sold as "locusts" — primarily the migratory locust (Locusta migratoria) and the desert locust (Schistocerca gregaria) — are among the most destructive agricultural pests on earth. A desert locust swarm can strip crops across entire regions. Because of that, they're regulated in the US as plant pests under the authority of USDA's Animal and Plant Health Inspection Service (APHIS). Moving or keeping live ones requires a federal permit, and the bar is high precisely because an escape into US farmland is a real ecological and economic threat. (APHIS administers these plant-pest permits; their permitting program is the authoritative reference.)

This is why you'll read British and European care articles raving about locusts as a mainstream feeder — in the UK and much of Europe they're legal, farmed commercially, and sit on the shelf next to crickets in any reptile shop. That advice is real for that market. It just doesn't cross the Atlantic. A US keeper who goes looking to "switch to locusts" will find they essentially can't, legally, and shouldn't try to work around it.

So treat the rest of this comparison two ways:

1. ◆If you're in the US: this is mostly about understanding why discoids are your staple, plus what you'd theoretically gain or lose if locusts were on the table (spoiler: not enough to matter, even setting legality aside).
2. ◆If you're somewhere locusts are legal (UK, EU, etc.): the comparison is live and genuine, and both feeders are viable — read on for the real trade-offs.

Discoid roaches, by contrast, are legal to keep across most of the US. The notable exception keepers ask about is that some jurisdictions regulate feeder roaches — for example, dubia roaches are restricted in Florida, which is a big reason discoids are so popular there. Always confirm your own state and local rules before ordering any feeder roach; a non-commercial starting point is your state agriculture department or a land-grant extension service like the University of Florida's entomology and nematology department.

Nutritional profiles: discoid roaches vs. locusts

Now the numbers — with the myths fixed. Treat everything here as approximate, as-fed figures. Real values swing with the insect's diet, life stage, and source, so don't chase a decimal point. What's reliable is the relationships between feeders, and those are what should drive your choices.

Protein

Protein is the headline nutrient for an insectivore, and here locusts genuinely have an edge. On a dry-weight basis locusts run very high — commonly cited around 28–35% — while discoids land around 20–25%. That sounds decisive, but in practice it isn't, for two reasons. First, those figures use different bases (dry weight vs. as-fed), so the gap is smaller than it looks once you normalize. Second, a leopard gecko doesn't need maximum protein — it needs sufficient protein, and a gut-loaded discoid clears that bar with room to spare. The extra protein in a locust matters most for an animal in heavy growth or reproduction, and even then discoids feed plenty of healthy, fast-growing baby leos every day.

Fat

Locusts are leaner — roughly 2–5% fat versus the discoid's 7–10%. For an adult leopard gecko, which is prone to obesity and fatty-liver issues, a leaner feeder is a genuine if modest advantage. But discoids are nowhere near a "fatty" feeder; that label belongs to waxworms and superworms (15%+ fat). A discoid's moderate fat is energy-dense without being a problem when fed in moderation. The real obesity driver in captive leos isn't the staple feeder's fat percentage — it's overfeeding and too many treat insects. Get portion control right and the discoid's fat is a non-issue.

Calcium and phosphorus — correcting the big myth

Here's where I have to directly contradict the source material this guide is built on, and a lot of the internet with it. Discoid roaches do not have a "favorable" calcium-to-phosphorus ratio. Their ratio is roughly 1:3 — three times as much phosphorus as calcium — which is the wrong direction. Locusts are similar, around 1:2 to 1:3. Both are phosphorus-heavy.

This isn't a discoid problem or a locust problem; it's a feeder insect problem. Nearly every commonly used feeder — crickets, dubia, discoids, mealworms, superworms, locusts — is phosphorus-heavy. The one common exception is black soldier fly larvae, which actually carry a calcium-positive ratio. For everything else, the inverted ratio is exactly why calcium dusting is mandatory. When phosphorus outweighs calcium in the diet, the gecko pulls calcium from its own bones to balance its blood chemistry, and chronic deficiency becomes metabolic bone disease.

So when you read that discoids have a "more favorable" or "better" Ca:P ratio than other feeders — be skeptical. They're marginally less bad than some, but they are not balanced, and treating them as if they don't need supplementation is how leos end up with MBD. The honest rule for both feeders: gut-load to improve the overall package, then dust with a calcium supplement every feeding for juveniles and most adults, using a calcium-plus-D3 product on the schedule appropriate to whether your gecko gets UVB. More on the protocol below.

Moisture and digestibility

Both feeders are soft-bodied and easy to digest — a real plus for juveniles and senior geckos, whose digestion is less robust than a prime adult's. Discoids are notably low in chitin (the tough exoskeleton material), and locusts have a similarly soft shell. Neither poses the harder-shell digestion concerns of, say, an adult cricket or a superworm's hard head capsule. Moisture is comparable, with locusts slightly higher; neither replaces a proper water dish and humid hide, but both contribute to hydration.

The case for discoid roaches

Strip out the legality issue for a moment and discoids would still be a top-tier leopard gecko feeder. Here's what makes them work.

Nutrition that fits a leo

High protein, moderate fat, soft body. That profile is close to ideal for a staple insectivore feeder — enough protein to grow and maintain a gecko, enough fat for energy without tipping into obesity at sensible portions, and a digestibility that suits every life stage. They also gut-load exceptionally well and hold those nutrients: discoids have a relatively slow metabolism, so the calcium-rich greens and gut-load you feed them stay in their system longer, meaning the nutrition is still there when the gecko eats hours later. That's a real, underrated advantage over faster-metabolizing feeders.

Size variety for every life stage

This is one of the discoid's quiet superpowers. A breeding colony produces a continuous spread of sizes, from pinhead nymphs to two-inch adults. That lets you pick the exact size for a tiny hatchling, a growing juvenile, or a full adult — always staying within the eye-width safety rule — from the same source. Locusts, by contrast, are sold in fixed size grades; you buy "small" or "medium" or "large" and you're stuck with what arrives. For precise, safe sizing across a gecko's whole life, the discoid wins easily.

Movement that geckos can handle

Discoids move at a moderate, steady pace — active enough to trigger a leo's hunting response, slow enough that they don't overwhelm or stress a shy or juvenile gecko. Their main quirk is a tendency to try to hide or stay still, which can occasionally make a gecko lose interest. The fix is simple: present them with feeding tongs and a little wiggle, or drop them in a shallow smooth-walled dish so they can't escape and the gecko can find them.

Easy, low-drama keeping

Discoids are about as forgiving as feeder husbandry gets. They want warmth (mid-80s °F for breeding, though they survive cooler), moderate humidity, egg flats to hide in, and a simple diet of produce plus a dry protein base. They're live-bearers, so there's no fragile egg case to incubate. They're nearly odorless when kept properly — a massive upgrade over crickets and, frankly, over locusts kept in numbers. And critically, adult discoids cannot climb smooth vertical surfaces like glass or smooth plastic, and they don't fly, so escapes are easy to prevent. (The one caveat: pinhead nymphs can slip through coarse ventilation and can grip rough surfaces like cardboard and screen, so fine metal mesh on vents matters. They just can't scale a smooth bin wall.) If you want the full breeding-and-keeping playbook, I wrote a complete one: how to keep discoid roaches alive.

You can breed your own supply

Because discoids breed readily in a simple bin, a starter colony can become a self-sustaining, nearly free supply of feeders. That's the long-term cost story: a bit more upfront, then years of feeders for the price of some vegetable scraps and roach chow. For a US keeper this is the practical endgame — you own your staple. When you need to seed a colony or top up a thin one, All Angles Creatures stocks healthy, well-started discoid roaches sized for both breeding stock and direct feeding.

The honest downsides of discoids

I'm not going to pretend they're flawless:

• ◆Availability and cost (short term). They're pricier and harder to find than crickets or mealworms at a big-box pet store; you'll usually order from a specialty feeder supplier. Breeding your own erases this over time, but the upfront step is real.
• ◆They can hide. Their tendency to stay still or burrow means a movement-driven gecko sometimes ignores them. Presentation solves it, but it's a real quirk.
• ◆Heat-dependent breeding. A colony genuinely needs warmth to produce. If you keep your home cool and don't want to run a heated bin, breeding will stall (the roaches are fine; they just won't multiply).
• ◆Some keepers are squeamish. They're roaches. For a lot of people that's a hurdle, even though they're contained, clean, and can't infest a home the way pest species can.

The case for locusts (where they're legal)

For keepers in markets where locusts are legal, they're a legitimately strong feeder. Here's the genuine case.

• ◆Outstanding protein, low fat. Among common feeders, locusts sit near the top for protein and near the bottom for fat. That combination is excellent for growth and for adults that need a lean diet — arguably the leanest "high-protein" mainstream feeder you can offer.
• ◆Strong feeding response. Locusts hop and move erratically, and that movement is catnip for a leopard gecko's visual hunting instinct. A gecko that's gone off its food or is just plain lazy will often strike a locust when it ignores a sedate roach. As enrichment, that dynamic prey behavior is a real plus.
• ◆Soft-bodied and digestible. A soft exoskeleton makes them easy on digestion, good for young and recovering geckos.
• ◆Quieter than crickets. Locusts don't produce the constant chirping that makes a cricket bin a nuisance in a bedroom or living room.

The honest downsides of locusts

Even setting US legality aside, locusts come with real drawbacks:

• ◆Size and choking risk. Locusts get large, and the size grades can jump. An oversized locust is a genuine choking or impaction hazard for a juvenile or small-mouthed gecko. You have to size carefully, and the fixed grades make that harder than with discoids.
• ◆They're escape artists. Locusts jump and climb. A loose locust in the enclosure or the room is a hassle to catch, and their speed can stress a timid gecko or simply outrun a slow one. Keepers sometimes resort to chilling them or even clipping hind legs (a debated, fiddly practice) to manage this.
• ◆Demanding to keep alive and breed. Locusts want higher heat (often up into the 90s–100s °F with good lighting), specific humidity, a diet of fresh greens and grasses, and space; they're sensitive to overcrowding, mature fast, and don't live long. Breeding them at home is far harder than breeding discoids — you'd typically buy them repeatedly rather than sustain a colony.
• ◆Odor in numbers. Kept in quantity, locusts can smell, undercutting one of the supposed advantages over crickets.
• ◆Diurnal vs. a nocturnal gecko. Locusts are most active in daytime; leopard geckos hunt at night. The timing mismatch can make feeding a little awkward — many keepers offer them in early evening when the locust is calming down and the gecko is waking.

Ease of breeding and keeping: head to head

If you want a self-sustaining feeder supply, this category isn't close.

Discoids are one of the easiest feeders to breed and keep. They tolerate a range of conditions, want roughly mid-80s to low-90s °F for good production and moderate humidity, and need only a ventilated bin, egg flats, and simple food. Live birth means no egg incubation. They're quiet, low-odor, and can't climb out of a smooth bin. A beginner can run a colony successfully.

Locusts demand more precision: higher temperatures, strong lighting, carefully managed humidity, and a moist substrate kept at the right moisture for the females to lay eggs and for those eggs to hatch. They eat mostly fresh greens and grasses, hate overcrowding, mature quickly, and are short-lived — so sustaining a colony is a real, ongoing project. Most keepers (where they're even legal) buy locusts rather than breed them.

Bottom line: for a keeper who wants to own their supply, discoids are dramatically more practical. For a keeper content to buy feeders weekly in a market where locusts are sold, locusts can work — but they're the higher-maintenance choice either way.

Cost comparison

Two ways to look at cost: per-bug and long-term.

Per-bug, bought retail, discoids tend to be more expensive than crickets or mealworms, and in legal markets locusts are typically pricier still — they're less often sold in bulk and frequently carry shipping costs. So if you're buying every feeder individually, locusts are usually the costliest of the common options.

Long-term, discoids win decisively because you can breed them. A starter colony has a higher upfront cost than a tub of locusts, but a productive colony then supplies feeders for years on vegetable scraps and cheap dry food. Locusts, being impractical to breed at home for most people, keep you buying indefinitely. Over a gecko's life — and leopard geckos can live 15–20 years — the breed-your-own discoid is far cheaper.

For a US keeper the cost question is moot anyway: discoids are the only one of the two you can actually buy and keep.

Feeding preferences: which do leopard geckos favor?

Geckos are individuals, but there are real tendencies.

Locusts win on pure stimulation. Their hopping, erratic movement strongly triggers the visual strike response, so they're often the better choice for a finicky eater, a gecko recovering its appetite, or one that's simply lazy about slow prey. The flip side: a large, fast locust can intimidate a shy or small gecko into not feeding.

Discoids are slower and more predictable, which most geckos handle fine — but their habit of holding still or trying to hide can make a movement-driven gecko lose interest. This is entirely manageable with presentation: tong-feeding with a little wiggle, or a shallow escape-proof dish, turns a "boring" discoid into an easy meal. Once a gecko associates discoids with food, most take them eagerly.

In practice, the vast majority of leopard geckos eat well-presented discoids without complaint. If you ever hit a genuinely stubborn refuser in a market where locusts are legal, the locust's movement can be a useful tool to restart feeding — but that's a niche case, not the everyday norm.

Calcium and gut-loading: the protocol that actually matters

Since neither feeder fixes calcium on its own, how you supplement matters more than which insect you pick. This is the part that prevents disease, so get it right.

Gut-load first. For 24–48 hours before feeding off, feed your discoids (or locusts) a nutrient-rich diet: calcium-rich leafy greens (collard, dandelion, mustard greens), squash, carrot, sweet potato, plus a quality dry protein base or commercial gut-load. What the feeder eats becomes part of what your gecko eats. Discoids' slower metabolism means the gut-load lingers; locusts digest faster, so gut-load them closer to feeding time (within hours) for full effect.

Then dust, every time it's due. Gut-loading improves the package but does not fix the inverted Ca:P ratio. Dust feeders with supplement right before offering them:

• ◆Plain calcium (no D3): the most frequent dusting. For juveniles, dust at essentially every feeding. For adults, most feedings.
• ◆Calcium with D3: less often — the schedule depends on whether your gecko has UVB. A gecko without UVB relies on dietary D3 to absorb calcium, so a calcium-plus-D3 product is used more regularly (but not every feeding, to avoid over-supplementing D3). A gecko with good UVB needs dietary D3 less often.
• ◆Multivitamin: a light dusting on a periodic schedule (e.g., roughly weekly to twice monthly) to cover broader micronutrients including vitamin A.

The exact cadence varies with your setup and your gecko's age and condition; when in doubt, a reptile vet familiar with leos can dial it in. But the principle is fixed: both discoids and locusts must be dusted with calcium, because both are phosphorus-heavy. Skipping this because you read that discoids are "naturally balanced" is the classic path to metabolic bone disease.

Which is better by gecko age group

Life stage shifts the answer at the margins. (Remember: for US keepers, "locust" here is the theoretical leg of the comparison.)

Juvenile leopard geckos

Juveniles grow fast and eat daily, needing frequent, well-sized, high-protein meals. Small discoid nymphs are the standout staple: high protein, soft, slow enough not to overwhelm a baby, and — crucially — available in tiny sizes you can match precisely to the gecko. Size to no wider than the space between the eyes; for a hatchling that's a very small nymph. Locusts can work in legal markets but their size jumps and faster movement make them trickier and riskier for a small juvenile. Edge: discoids.

Adult leopard geckos

Adults eat less often (every 2–4 days) and need watching for obesity. Both feeders suit adults well. Discoids deliver substantial protein at a manageable fat level and easy sizing; locusts' leaner profile and strong feeding stimulus are nice perks where they're available. This is the most evenly matched stage — but availability and breed-ability still tip it to discoids for US keepers.

Senior leopard geckos

Older geckos have slower metabolisms and benefit from soft, dense, easy-to-digest prey. Smaller discoid nymphs are ideal — pliable, nutritious, and gentle on aging digestion. Locusts are softer than many feeders too, but their agility can make them harder for a slower senior to catch, and the digestion edge goes to the low-chitin discoid. Edge: discoids.

A practical feeding schedule and portions

Picking the feeder is half the job; feeding the right amount on the right rhythm is the other half. Here's the schedule I run, anchored to discoids since that's the realistic US staple. Quantities are starting points — watch body and tail condition and adjust.

The eye-width rule runs through every row: no feeder should be wider than the gap between the gecko's eyes. It's the simplest guard against choking and impaction, and it's the single most important sizing habit. Discoids make it easy because you can pick a nymph of almost any size; locusts, sold in fixed grades, make precise sizing harder and that's a genuine safety point in the discoid's favor.

A few portion principles that matter more than the exact counts:

• ◆Feed in a window, don't free-feed. Offer for 10–15 minutes, then remove uneaten feeders (especially important with anything that can hide or stress the gecko overnight). A roach left in the tank can nibble a sleeping gecko or just stress it.
• ◆Watch the tail. A leopard gecko's tail is its fat gauge. A plump, rounded tail means well-fed; a pencil-thin tail means underfed; a tail wider than the neck plus a heavy belly means you're overdoing it. Adjust portions off the tail, not off a fixed number.
• ◆Don't confuse appetite with need. Juveniles will eat almost endlessly; adults will happily get fat. The schedule, not the gecko's enthusiasm, sets the pace once they're grown.

Handling, storage, and keeping feeders feed-ready

However you source your feeders, you'll hold some between feedings. Doing that well preserves their nutrition and keeps the gecko's meals consistent.

Holding discoids short-term. A smooth-walled plastic tub with fine-mesh ventilation, a few pieces of egg flat for hiding, and a bit of food keeps a feeding batch healthy for days to weeks. Keep them warm enough to stay active and lightly fed so they don't deplete. If you're holding a feeding group rather than breeding, you don't need full colony heat — just keep them from getting cold and sluggish.

Slowing them down. If you want to pause activity without breeding (say you bought more than you'll use soon), cooler temperatures around 65–70°F slow discoids' metabolism and stretch the supply, while keeping them alive. Don't chill them to the point of harm, and keep the container clean — lethargy or discoloration is your sign something's off.

Hydration without drowning. Use water crystals or a shallow dish with a sponge, never an open dish of water — feeder insects, especially nymphs, drown easily. Hydrated feeders are better feeders, both for the gecko's water intake and because a dehydrated insect is a poorer meal.

Handling cleanly. Scoop or coax feeders with clean hands or a cup; wash up afterward. It's basic hygiene, but feeder insects can carry surface bacteria, so don't go from feeder bin to handling your gecko without a wash. Avoid rough, sudden handling that stresses the insects — a stressed discoid will sometimes play dead, which just makes it harder to present to the gecko.

For locusts (where legal), holding is fussier: they need more space, fresh greens, warmth, and a rough-surfaced container to limit jumping and climbing before you feed them off. That ongoing effort is part of why discoids are the more relaxed choice even before legality enters the picture.

Presenting a feeder to a reluctant gecko

The most common "my gecko won't eat its discoids" complaint is really a presentation problem, not a feeder problem. Discoids' tendency to freeze or hide can switch off a gecko that hunts by movement. Fixes, in order of how often I reach for them:

1. ◆Tong-feed with a wiggle. Hold the discoid gently in soft feeding tongs and give it a small, lifelike twitch in front of the gecko. The movement triggers the strike. This alone solves most refusals.
2. ◆Use a shallow, smooth dish. Drop feeders into a shallow escape-proof bowl. The discoids can't climb out, they mill around at the bottom, and the gecko learns the dish means food. Great for keepers who don't want to tong every meal.
3. ◆Feed at the gecko's hour. Leos are crepuscular-to-nocturnal; offer food in the evening when the gecko is naturally waking and hunting, not midday when it wants to sleep.
4. ◆Gut-load for plumpness and scent. A well-fed, freshly gut-loaded discoid is more enticing than a starved one.

This is also where locusts' built-in movement is genuinely useful for the rare hard case — but you can manufacture the same response from a discoid with tongs, so it's not a reason to chase an illegal feeder.

Escape risk and the environmental angle

There's an ecological reason to prefer discoids that doubles as a safety reason for your home, and it ties straight back to the legality section.

Locusts are regulated because they're catastrophic if they establish in the wild — they fly, they breed explosively, and they devastate crops. That same escape-and-establish risk is why a loose locust is more than a household nuisance. Discoids, by contrast, can't climb smooth walls and can't fly, which makes them far easier to contain and far lower-risk if a few ever got loose. A Blaberus discoidalis is a tropical species that won't establish a breeding infestation in a typical temperate home or, realistically, threaten agriculture the way a swarming locust can. Discoids are also efficient to raise — modest water and food needs, and their frass (droppings) even makes a decent garden fertilizer — which is a minor sustainability point in their favor.

None of this means you can be careless: cover vents with fine metal mesh so pinhead nymphs can't slip out, and keep your colony sealed and tidy. But the fundamental containment story strongly favors the non-climbing, non-flying, non-establishing discoid.

Common mistakes to avoid

The errors I see most often, across both feeders:

• ◆Trusting the "balanced calcium" myth. Believing discoids don't need dusting because they're "naturally balanced." They're phosphorus-heavy at ~1:3. Dust them. This is the big one.
• ◆Feeding too large. Ignoring the eye-width rule and offering a feeder that risks choking or impaction, especially with juveniles or with size-graded locusts.
• ◆Overfeeding adults. Treating an adult like a growing juvenile and free-feeding it into obesity. Watch the tail; slow the schedule once grown.
• ◆Skipping gut-load. Feeding hungry, unfed insects so the gecko gets an empty calorie instead of a nutrient-loaded meal.
• ◆Leaving uneaten feeders in the tank. Roaches that hide and nibble a sleeping gecko, or just stress it. Remove leftovers.
• ◆Chasing illegal locusts in the US. Trying to source or smuggle locusts because an article praised them. Don't — it's illegal, it's an ecological risk, and discoids do the job.
• ◆Mono-feeding without variety. A staple is great, but rotate in other dusted feeders for micronutrient coverage and enrichment.

The verdict

If you're in the United States, the decision is effectively made for you, and it lands on the better-husbandry option anyway: discoid roaches are your leopard gecko's staple feeder. Locusts are a fine insect nutritionally — high protein, lean, stimulating to a gecko — but they're restricted agricultural pests you can't legally buy or rear here, and even where they're legal they're harder to keep, harder to breed, harder to size safely, and prone to escaping. Discoids match locusts closely enough on nutrition, beat them decisively on availability, sizing, breeding, and ease of keeping, and only really trail on raw protein percentage and a slightly higher fat level — neither of which is a problem for a properly fed leo.

The one thing neither feeder does is fix calcium. Both are phosphorus-heavy, so whichever you use, gut-load thoroughly and dust with calcium — that habit, not the choice between two good insects, is what actually protects your gecko from metabolic bone disease.

My standing recommendation for a US leopard gecko: build the diet around a discoid colony you keep yourself, dust every feeding as appropriate to age and UVB, and rotate in variety (a dusted cricket, a hydrating hornworm, the occasional treat) to round out the package. That's a diet you can sustain cheaply for the gecko's whole long life — and the gecko never knows it's missing the locusts it legally couldn't have had anyway.

Want to go deeper on the staple? Start with my full discoid roach keeping and breeding playbook, compare more options in are discoid roaches or other feeders best for leopard geckos, or browse the whole exotic animal care library.