What Do Dart Frogs Eat?
Dart frogs are insectivores that specialize in small invertebrates. In the wild they consume a wide variety of tiny prey — mites, ants, springtails, and other small arthropods. In captivity, the diet is built around cultured fruit flies as the primary staple, supplemented with springtails, isopods, and other small feeders where available. All feeders must be dusted with calcium and vitamin supplements before offering.
Primary Staple: Fruit Flies
Fruit flies (Drosophila spp.) are the backbone of the captive dart frog diet. Two species are used:
- Drosophila melanogaster: Smaller fly, appropriate for thumbnail species (Ranitomeya, Epipedobates) and juvenile dart frogs of all species.
- Drosophila hydei: Larger fly, appropriate for adult Dendrobates, Oophaga, and other medium to large species.
Both are flightless, making them easy to contain and offer in the vivarium. Maintain your own cultures for a consistent, reliable supply. See our Best Amphibian Food and Feeders guide for culture supplies.
Supplemental Feeders
- Springtails (Collembola): Essential for thumbnail species and juveniles. Also serve as the vivarium's cleanup crew. Establish a springtail culture in the vivarium itself for a self-sustaining population.
- Isopods: Larger species can consume small isopods. Also serve as vivarium cleanup crew alongside springtails.
- Melanogaster or hydei alternation: Rotating between fly species and sizes adds dietary variety and keeps frogs from becoming conditioned to a single prey item.
Supplementation
This is the most critical part of dart frog feeding. Dust all feeders immediately before offering — flies lose supplement coating quickly once in the vivarium.
- Calcium and vitamin supplement: Follow the manufacturer's schedule for your chosen supplement. Frogs kept without UVB generally require D3 more frequently than those provided with appropriate UVB.
- Vitamin supplement (with vitamin A): Rotate in every 2–3 feedings. Vitamin A deficiency causes "short tongue syndrome" — a progressive condition where the frog loses the ability to catch prey. Preventable with consistent supplementation.
See our Best Calcium and Vitamin Supplements for Amphibians guide for recommended products.
How Often to Feed
- Juveniles: Daily or every other day. Small, frequent feedings support rapid growth.
- Adults: Every 2–3 days. Offer enough flies that a few remain in the vivarium between feedings — dart frogs are active hunters and benefit from having prey available to stalk.
Unlike White's Tree Frogs or Pacman Frogs, obesity is not a significant concern with dart frogs — they are active, high-metabolism animals that burn through calories quickly.
How to Offer Feeders
Dust flies in a small container, then tap them into the vivarium. Offer feeders in the morning when dart frogs are most active. In a healthy bioactive vivarium, springtails and isopods will handle most cleanup of uneaten prey.
My Dart Frog Won't Eat
See our Dart Frog Not Eating guide for a full troubleshooting checklist.