My fire belly frogs won't eat crickets. What's wrong and how to help?

Releasing it would not be recommended and in some locations, may be illegal. You can continue to feed nightcrawlers in addition to commercial frog pellets, brine shrimp, blood worms and small insect prey (nothing wild caught). Frogs are very sensitive to water quality and environmental parameters. Low temps can affect activity and appetite in amphibians and reptiles as can poor water quality. If you can provide the species of frog or an image, we can provide more comprehensive advice.

Clean and sanitize the tank. Replace ALL the substrate with fresh organic topsoil or coco fiber. Do not use vermiculite or perlite. Avoid gravel, sand or wood chips. Ideal temperature ranges between 68F and 78F with the cooler end reserved for nighttime. Mist the cage several times weekly to maintain humidity. Provide a water bowl and clean it daily. Soak him in a tepid (75F) 50/50 solution of water and unflavored PediaLyte. This will provide warmth and hydration. A cold frog will not eat. Afterwards, offer live food. Something with a lot of movement like nightcrawlers or mealworms. If he still doesn't eat, have him examined by your veterinarian or a vet experienced in treating reptiles and amphibians.

Check the water quality and temperature. Frogs are very sensitive to poor water quality. Low temps can affect appetite and activity. You may need to perform a water change and increase filtration. Discoloration may be due to poor water quality or infection. If the water changes do not help, consider an exam with your veterinarian or a vet experienced in treating reptiles and amphibians.

Confirm proper environmental parameters. Frogs are very sensitive to changes in water chemistry and water temperature. Offer food every other day. ADFs are small and don't need to eat much. Feed as much as he will eat in 5-10 minutes. You can offer frog pellets, frozen or live brine shrimp or frozen bloodworms. Frozen beef heart can be used as an occasional treat. Remove any uneaten food promptly to prevent fouling the water.

Confirm proper environmental parameters, especially temperature. Low temps can affect appetite in reptiles and amphibians. Be sure you are offering appropriately sized prey as well. Nothing bigger than the space between the eyes. I would suggest you correct the type of pet you have in the information section. I don't think you have a tadpole if he hangs out with you on the desk. Knowing the species allows us to provide more accurate advice.

Green Tree Frogs feed exclusively on insects. You can feed mostly crickets which should be gut-loaded (fed a high-protein, nutritious meal before being offered to the frog) and dusted with a calcium and multivitamin supplement a couple of times a week. Flies, grass hoppers, etc. make good food also.

Offer appropriately sized prey, no bigger than the space between the eyes. Confirm proper temperature as well. Low temps can affect appetite and digestion in reptiles. Be sure to dust prey at every feeding with a multivitamin and calcium supplements. Gutloading prey for 24 hours will also maximize nutritional value. Do not be concerned if she refuses food for one day.