I ordered my flightless fruit flies online. I just bought a bunch of them and didn't culture them as the frogs grew so fast they were on crickets in no time at all. Green frogs are a pain to keep as are bullfrogs. You have to really want to care for them to keep them. They eat a lot. As an adult they eat a lot. I can buy 50 crickets and they are all gone within a week. I would keep it in at least a 20 gallon long tank by itself. One fourth of the tank needs to be land area with a substrate the frog can burrow in if they wish. The rest needs to be water as these frogs love to hang out in the water. I put little rock platforms in the water they can sit on. Mine rarely use the land area.