What Do Poison Dart Frogs Eat? Complete Diet Guide + Safe Foods List

So you got yourself a tiny, colorful frog that could technically kill you in the wild. Cool.

Now you need to figure out what to feed it without accidentally starving it or giving it something that’ll mess up its stomach.

Here’s the short answer — poison dart frogs eat small, live insects under 1/8 inch in size. Fruit flies are the main thing. Springtails, isopods, pinhead crickets, and phoenix worms fill in the rest.

But there’s more to it than just tossing bugs in a tank. The wrong food, wrong size, or wrong schedule can seriously hurt your frog.

In this guide, I’m covering every safe food option, exact feeding schedules by age, supplement routines, foods you should never give them, and why wild dart frogs are poisonous but your pet one isn’t. Let’s get into it.

Quick Dart Frog Diet Summary:

Best staple foods:

• Fruit flies (melanogaster & hydei)
• Springtails
• Pinhead crickets (small only!)
• Isopods
• Phoenix worms (black soldier fly larvae)

Feeding schedule:

• Adults: 30-50 fruit flies, every 2-3 days
• Juveniles: 20-40 fruit flies daily
• Young adults: 50-75 fruit flies, 4-5 days/week

Supplements needed:

• Calcium with D3: every feeding
• Multivitamin: 1x per week

Never feed:

• Wild-caught insects
• Insects larger than 1/8 inch
• Dead insects (they won’t eat them)
• Mealworms (too big, hard to digest)

What Can I Feed My Dart Frogs?

Let’s get one thing straight.

Dart frogs are picky. Like, absurdly picky.

They won’t eat anything over 1/8 inch. They won’t eat anything dead. And they definitely won’t eat pellets, flakes, or whatever commercial food you found at PetSmart.

Live bugs or nothing. That’s the deal.

But don’t let that scare you. The bugs they DO eat are cheap, easy to culture at home, and honestly kind of fun to raise (weird, I know).

Here’s every safe food you can give your dart frog:

Safe Food	Best For	Notes
Melanogaster Fruit Flies	Froglets + small species	Smallest fly, easiest to culture
Hydei Fruit Flies	Adults + larger species	More protein, won’t revert to flying
Springtails	All ages (supplement)	Also cleans your vivarium
Dwarf White Isopods	All ages (supplement)	Soft-bodied, easy to culture
Pinhead Crickets	Larger adults only	Must be tiny — week old max
Phoenix Worms (BSFL)	All ages (treat)	Calcium-rich, no dusting needed
Rice Flour Beetle Larvae	All ages (treat)	Easy backup culture
Bean Beetles	All ages (occasional)	High protein, but high chitin

Let me break each one down.

Fruit Flies — Your Frog’s Bread and Butter

If you’re keeping dart frogs, you’re keeping fruit flies. There is literally no alternative.

No pellets exist for dart frogs. No flakes. No freeze-dried options. Nothing on any shelf at any store will work.

Fruit flies are it.

Two types dominate the hobby — melanogaster and hydei. And you’ll probably end up using both.

Melanogaster Fruit Flies (Drosophila melanogaster)

These are the tiny ones. About 1/16 inch long.

They’re flightless (thanks to a genetic mutation), they breed like crazy, and cultures are dirt cheap to maintain.

Perfect for froglets and smaller dart frog species like thumbnails.

One thing to watch out for though. In hot weather, melanogaster can sometimes regain the ability to fly. Imagine opening a culture and having a cloud of fruit flies scatter across your living room. Ask me how I know.

Hydei Fruit Flies (Drosophila hydei)

Bigger than melanogaster. About 1/8 inch.

More protein per fly. And the flightless strain stays flightless even when it’s warm. That’s a big win.

The catch? They take about 21 days to start producing in a new culture. And they do this weird boom-and-bust thing where the culture looks completely empty for days, then BAM — overnight it’s crawling with flies.

Most experienced keepers use hydei as their go-to feeder for adult frogs.

Quick tip: You can feed fruit fly larvae to underweight or sick frogs. Scrape them straight out of the culture. They’re fatty, soft, and easy to eat.

Springtails — Tiny Janitors That Double as Snacks

Springtails are about 1/32 of an inch. Basically microscopic.

They live in your vivarium, eat mold and decaying plant matter, and keep things clean. Your frogs munch on them between regular feedings.

Think of them as the free snack bar that also cleans your kitchen.

For froglets, springtails are incredibly important. Some thumbnail species basically survive on springtails alone during their first few weeks.

But don’t use springtails as the only food source. They’re nutritionally incomplete. Good supplement, bad staple.

Culturing them? Stupidly easy. Charcoal container, sprinkle of rice, done. They basically take care of themselves.

Isopods — The Other Cleanup Crew

Dwarf white isopods are what you want. Soft-bodied, tiny, and they reproduce fast.

Like springtails, they pull double duty — breaking down waste in your vivarium while also serving as occasional frog food.

Stay away from larger species like zebra isopods. Too big for most dart frogs to swallow.

Pinhead Crickets — Proceed With Caution

You CAN feed pinhead crickets to larger dart frog species. But honestly? Most keepers skip them entirely.

Here’s why.

Crickets grow fast. Miss a few escapees and suddenly you’ve got full-sized crickets living in your vivarium. Full-sized crickets can actually bite and injure your frogs. Not great.

Their exoskeleton is harder than fruit flies, so some frogs just won’t bother with them.

And finding genuinely pinhead-sized crickets at pet stores is a nightmare. Anything labeled “small” is usually already way too big.

If you do use them, stick to week-old crickets max. Gut-load and dust them before feeding.

Phoenix Worms (Black Soldier Fly Larvae) — Nature’s Calcium Pill

These are probably the best treat you can give your dart frogs.

Phoenix worms have a naturally perfect calcium-to-phosphorus ratio. You don’t even need to dust them. They come pre-loaded.

They also contain lauric acid, which has antimicrobial properties. Basically a health supplement disguised as a worm.

But here’s the plot twist.

If the larvae escape into your vivarium and pupate, they turn into black soldier flies. Which look like wasps. And they’re way too big for your frogs.

Always feed phoenix worms from a petri dish. Don’t just dump them in the tank.

Bean Beetles — Easy Culture, Feed Sparingly

Want the laziest insect culture on the planet? Bean beetles.

Black-eyed beans in a cup. Vented lid. Walk away. Come back in a few weeks and you’ve got beetles.

They’re packed with protein, fiber, calcium, and iron.

The problem? Their tough chitin exoskeleton can cause digestive impaction if you feed too many. Some keepers have reported serious issues.

Monthly treat? Fine. Daily staple? Absolutely not.

Oh, and they can fly when it’s warm. Open those cultures over a bathtub unless you want beetles exploring your house.

Rice Flour Beetles — Your Emergency Backup Plan

These are the “break glass in case of emergency” feeders.

Set up a culture in a container of flour. Forget it exists for months. When your fruit fly cultures crash (and they WILL crash eventually), you’ve got backup food ready.

Feed the larvae, not the adults. Adult beetles release an unpleasant chemical that makes them taste terrible. The larvae? Your frogs will go crazy for them.

What Foods Are Unsafe For Dart Frogs?

Not a lot of foods will straight-up kill your dart frog. But there are things that can seriously mess them up.

• Wild-caught insects — This is the #1 rule. Never feed your dart frog anything you caught outside. Pesticides, herbicides, parasites — you have zero idea what that bug has been exposed to. One contaminated cricket could take out your frog.
• Anything over 1/8 inch — No teeth means no chewing. If it’s too big to swallow whole, your frog either chokes on it or the insect fights back. Large crickets will literally bite your frog’s mouth. Nasty stuff.
• Dead insects — Your dart frog won’t touch anything that isn’t moving. Movement triggers their feeding response. If it’s not crawling, it doesn’t exist to your frog.
• Mealworms — Too big, too much chitin, too hard to digest. They also burrow into substrate and disappear. Just skip them entirely.
• Commercial reptile food — No pellets, no flakes, no freeze-dried anything. Dart frogs need live prey. End of story.
• Human food — I really hope I don’t need to explain this one. But just in case — don’t feed your dart frog your leftovers.

How Much Should I Feed My Dart Frog?

This is where new keepers stress out the most.

Relax. It’s not rocket science.

The amount depends on age, size, and species. But these guidelines work for the vast majority of dart frogs.

Adult Dart Frog Feeding Schedule

Food	Amount	Frequency
Hydei Fruit Flies	30-50 per feeding	Every 2-3 days
Melanogaster Fruit Flies	30-50 per feeding	Every 2-3 days
Pinhead Crickets	5-10	Once a week (optional)
Phoenix Worms	Small handful	Every other week
Springtails	Seed vivarium regularly	Ongoing supplement
Rice Flour Beetle Larvae	Small portion	Monthly treat

Juvenile Dart Frog Feeding Schedule

Food	Amount	Frequency
Melanogaster Fruit Flies	20-40 per feeding	Daily
Springtails	Seed vivarium regularly	Ongoing supplement
Isopods	Seed vivarium	Ongoing supplement
Phoenix Worms	Small amount	Monthly treat

Now here’s what nobody tells you.

Most keepers don’t actually count individual flies. You shake some out, watch your frogs eat, and adjust from there.

Tons of uneaten flies crawling around hours later? You overfed. Cut back.

Frogs inhaled everything in minutes and are still hunting? Give more next time.

And keep an eye on body condition. Dart frogs — especially Leucomelas and Tinctorius — get fat easily. If your frog is starting to look like a little balloon, ease up on the portions.

One more thing. Skipping a feeding day once a week is totally fine. Wild frogs don’t eat on a schedule. A fasting day mimics natural behavior and isn’t going to hurt anything.

How To Actually Feed Your Dart Frogs (Step by Step)

Knowing what to feed is great. But if you’ve never actually tried to transfer fruit flies into a vivarium, you’re in for a ride.

Those little things are FAST. And they’re escape artists.

Here’s the process that works:

• Step 1: Tap your fruit fly culture hard against a surface. This knocks the flies down to the bottom.
• Step 2: Quickly tilt and shake some flies into a large Tupperware container. Have your supplement powder already sprinkled in one corner.
• Step 3: Swirl the container so the flies roll through the powder and get coated. The dust slows them down too, which is a bonus.
• Step 4: Sprinkle the dusted flies into your vivarium. Or better yet, dump them onto a petri dish feeding station.

A trick from veteran keepers: Put a small piece of banana or apple (no skin) on a petri dish inside the vivarium. The fruit attracts flies and keeps them concentrated in one spot. Your frogs figure this out fast and start hanging around the feeding station like it’s a buffet.

For phoenix worms and beetle larvae, always use a dish. You do NOT want those burrowing into your substrate and vanishing.

What Supplements Do Dart Frogs Need?

Here’s something a lot of beginners don’t realize.

Captive fruit flies don’t contain all the nutrients your dart frog needs. Not even close.

Wild dart frogs eat hundreds of different insect species. That natural variety gives them everything — calcium, vitamins, minerals, the works.

Your frog is eating one, maybe two types of bugs. That’s not enough on its own.

Without supplements, your dart frog will develop metabolic bone disease. Its bones weaken, it can’t move properly, and eventually it dies. Sounds dramatic because it is.

Here’s what you need:

• Calcium with D3 — Dust your feeders with this at every single feeding. Non-negotiable.
• Repashy Calcium Plus is the most popular all-in-one option. It covers calcium, D3, and multivitamins (I suggest this one) in one powder.
• Multivitamin — If you’re NOT using an all-in-one powder, supplement multivitamins separately at least once a week.
• How to dust: Sprinkle powder into your container, add flies, swirl until coated. Feed right away — the dusting falls off quickly.

Only dust what you’re feeding that day. Don’t batch-dust a bunch of flies thinking you’ll save time. It doesn’t work.

Will Dart Frogs Eat Dead Insects?

Nope. Not happening.

Dart frogs only eat live, moving prey. If it’s dead and sitting there, your frog literally pretends it doesn’t exist.

Even sluggish, barely-moving insects get less attention. Dart frogs want active, crawling, wiggling prey.

This is why freeze-dried insects, pellets, and any “just add water” food is completely useless. If it doesn’t move, your frog doesn’t eat.

Do Dart Frogs Eat Plants?

Adult dart frogs? Zero interest in plants. They’re strictly insectivorous.

But their tadpoles are a different story.

Many dart frog tadpoles are omnivorous. They’ll munch on algae and other plant matter while they’re developing in water.

Some species have an even cooler setup. The female dart frog deposits unfertilized eggs into the water as food for her tadpoles. That’s their main protein source until they transform into froglets.

Once they become baby frogs though? Insects only. For the rest of their lives.

What Do Dart Frogs Eat In The Wild?

Wild dart frogs eat like royalty compared to captive ones.

Ants, mites, termites, beetles, small flies, caterpillars, spiders, and dozens of other tiny arthropods. Research shows an adult dart frog eats around 14-15 prey items per hour while foraging.

That’s a staggering amount of tiny bugs consumed every single day.

And this diverse diet is exactly what makes wild dart frogs toxic.

Many of the ants and beetles they eat contain alkaloid compounds. The frogs don’t make these toxins themselves — they absorb and store them from their food. It’s like a slow-release poison accumulation system.

Some species get scary toxic. The golden poison frog (Phyllobates terribilis) has enough poison to kill 10 grown men. From a frog smaller than your thumb.

But here’s the part everyone misses.

Your pet dart frog is completely harmless. Captive dart frogs eat cultured fruit flies and springtails — none of which contain alkaloids. No toxic diet means no toxic frog.

You can hold your captive-bred dart frog with bare hands. No gloves. No danger. Just a cute little frog sitting on your finger.

Can Dart Frogs Eat Mealworms?

I’d say no.

They’re too big for most species. The chitin content is high, making them hard to digest. They burrow into substrate and disappear before your frog even notices them.

Want a wormy treat? Phoenix worms are smaller, softer, loaded with calcium, and way easier for your frogs to handle.

Skip the mealworms. Your frog won’t miss them.

How Long Can Dart Frogs Go Without Food?

Healthy, well-fed dart frogs can handle about a week with no food. Some keepers report their frogs lasting 3-4 weeks, but that’s really pushing it.

Going on vacation? Here’s what experienced keepers do:

• Seed your vivarium heavily with springtails and isopods before leaving. Your frogs will forage on them naturally.
• Make a mini fly culture feeder. Poke small holes in the rigid lid of a fruit fly culture. Lay it on its side in the vivarium. Flies crawl out slowly over several days.
• Never use plastic wrap as a lid — frogs can fall in and drown.
• Give a big, calcium-dusted feeding right before you leave.

For anything over 10 days, try to get someone to do at least one or two feedings.

Why Is My Dart Frog Not Eating?

Don’t panic. But don’t ignore it either.

Here are the most common reasons:

• Stress — Just got the frog? New arrivals often refuse food for a few days. New environment, new smells, everything is unfamiliar. Give them time.
• Wrong temperature — Dart frogs like 70-78°F. Too hot or too cold and their appetite tanks. Check your thermometer before you blame the food.
• Low humidity — Below 80% and your frog goes into hiding mode. If you never see your frog, the humidity is probably the problem, not the food.
• Food is too big — Switched from melanogaster to hydei recently? Smaller species might refuse the bigger flies. Size matters more than you’d think.
• Sickness — If an established frog refuses food for more than a week, something could be wrong. Parasites, bacterial infections, or other health issues might be at play. Time for a vet visit.
• Bullying — In group tanks, dominant frogs sometimes push others away from food. Watch carefully during feeding time. If one frog is consistently missing meals, you might need to separate them.

Frequently Asked Questions

How often do dart frogs eat?

Juveniles need food daily. Adults do fine eating every 2-3 days, or you can do smaller meals 4-5 times a week. Both approaches work.

Is a dart frog a carnivore?

They’re insectivores — a type of carnivore that only eats insects and small invertebrates. They’re not hunting down fish or other frogs.

What is the best food for poison dart frogs?

Fruit flies (melanogaster and hydei) are the undisputed #1. Add springtails and isopods for variety. Phoenix worms and rice flour beetle larvae make great treats. Dust everything with calcium and vitamins.

What do golden dart frogs eat?

Same as every other captive dart frog — fruit flies, springtails, isopods, and tiny insects. In the wild, golden dart frogs eat alkaloid-rich ants and beetles that make them the most poisonous animal on Earth. In your tank? They eat dusted fruit flies and are completely harmless.

Do dart frogs eat slugs?

They can in the wild, but most keepers don’t bother feeding slugs. Slugs are slow movers and dart frogs tend to lose interest in prey that doesn’t move much. Stick with fruit flies — way better results.

Wrapping Up

Feeding dart frogs sounds intimidating at first. Live insects? Culturing flies? Dusting with powders?

But once you’ve done it a few times, it becomes second nature.

Culture your own fruit flies. Seed your vivarium with springtails and isopods. Dust every feeding with calcium. Watch your frog’s body condition and adjust portions.

The biggest mistake new keepers make is relying on pet stores for fruit fly cultures. They’re expensive, unreliable, and they crash fast. Start your own cultures before your frog even arrives.

Do that, and you’ve got a happy, colorful, active little frog that’ll be hopping around its tank for the next 10-20 years.

Not a bad deal for a few cups of fruit flies.