Is it possible to take care of a wild caught frog?

[Sunshine]

I think you should let him go. He belongs out in the wild.

[Gnag the nameless]

Sherry has a point. Unless the frog is invasive to your area, or has been injured, it is best you let him go, and especially so if he/she hates captivity.

If it is invasive, keep it. For his/her setup, I'd get a 20-25 gallon long, nothing smaller. I use smooth pond stones too big to be eaten for both my bullfrog and green frog's setups, ramping up to form a land area, which is attached to a piece of thoroughly washed driftwood. I highly advise adding fake water lilies and reeds to place crickets on. Here's a list of things you will need in order to keep your frog, with some links on where to get some of the supplies:

1 20-25 gallon long tank
1-2 bags of smooth pond stones (if from outside, boil for 5-10 minutes)
Amphibian water conditioner: Mr.Pet's
Filter: Mr.Pet's OR U2 Underwater Filter - Petcetera
Aquarium background: Mr.Pet's
Aquarium lid
(Optional) Fake plants
(Optional) Fake water reeds/lilies
2 empty 4 liter milk/water jugs
2 large buckets
2.5 or 5 gallon tank for the crickets
2-3 empty egg cartons.
30 crickets (weekly) that are smaller than the space between the frogs eyes
Lettuce, carrots, various fruits, and oats to feed the crickets.
(Optional) Dew/Earthworms

Feed the frog daily on a basis of 2-5 crickets, and an earthworm every other day. Dust his crickets with a calcium + vitamin D3 mix every other day, with a multivitamin mix dust every week.

Refresh 25% of his water every 2 days and 50-100% weekly for the first 2 months to keep ph and ammonia levels, then switch to 50% every 5 days, as by then your filter would've cycled enough.

Closely monitor your frogs behavior in the first few months of captivity. Any abnormalities and let us know.

DO NOT USE TAP WATER!!!!! ALWAYS CONDITION IT FIRST. If you cannot find a place to buy the water conditioner, use water without chlorine (bottled spring water - make SURE it has been ozonated or has gone through reverse osmosis. Do not use distilled) or pond water, though not from stillwater.