Poison arrow frogs have a diverse food selection in the wild, which includes: termites, ants, small arachnids, beetles, larvae, and any other small insects that they can ingest. Many different food sources are available to feed your frogs but I use primarily wingless or flightless fruit flies. Wingless or flightless fruit flies are easy to breed, not very time consuming, and very nutritious, and many species of different sizes are readily available, depending on the size that is best for your frog. Pinhead crickets may also be used as food, but some species of poison arrow frogs have trouble eating them because the crickets are too large. Crickets are, however like fruit flies, readily available, cheap, and nutritious. Termites are the favorite food of poison arrow frogs but aren’t easy to find. If you acquire termites, don’t feed them to your frogs daily because your frogs will become obese due to the high protein content of termites.
Use springtails with froglets from the smaller species because other food items are often too large for them to consume. Wax moths or wax moth larvae are also suitable frog food, but take the proper precautions to make sure the frog food is size-appropriate. Wax moths are useful because you can slow their growth rate by refrigeration. Wax moths are better as a treat because they aren’t as nutritious and they have more fat. My experience shows that poison arrow frogs do not like silkworms, so don’t waste your money on silkworms.
Dust the food items with vitamin D and calcium supplements every other day. I feed my frogs daily to ensure that the frogs aren’t depriving other frogs of food items. Feeding the frogs daily also allows me to monitor them regularly. You want to know where your frogs hide and try to sprinkle the food items before their hiding area. By doing this, the frogs will be coaxed out to eat and you can ensure that all the frogs in the cage know that it is feeding time.
You should feed froglets smaller portions twice a day. Feeding froglets this way allows them to easily eat their food and not expel too much energy finding it. This method of feeding also decreases stress for multiple frogs housed together. Do not overfeed babies. Too many food items left in their enclosure will stress out the babies because the food items will crawl all over the froglets. Juveniles will often eat an enormous amount of food because they grow so quickly. Adults tend to be gluttonous. Be sure not to overfeed them or they will gain too much weight.
Dust your frog food 2-3 times a week for adults and 3-4 times for juveniles. If feeding your frogs termites or gut-loaded crickets, dust 1-2 times a week for adults and 2-3 times a week for juveniles.
Many hobbyists collect field plankton by netting nearby fields. This will provide your frogs with a diverse selection of insects. If you use this method, be absolutely sure that the area has not been sprayed with any pesticides, insecticides, or chemical fertilizers. Frogs will also shed their skin and eat their shedding, so if you catch them doing this, don’t be alarmed.