Dude sorry but the kind of efort you would be doing to "breed" tree frogs in that tank to use as feeders its simply not worth it, in fact most if not all tree frogs wont bred in such setup. They are already kind of tricky to keep, let alone in such small setup, no space for proper habitat, no termic gradient, etc. You may get away in keeping one or 2 of the smallest temperate climate ones but as pets not as feeders. Bred roaches or another bug for feeders and if you want set a copple of thouse frogs in that tank once its properly setup. Buy the way nice bull frog
Once in a wille you can feed it mice. Some guys here were able to train thouse to take meat and tetra reptomin
Once in a wille you can feed it mice. Some guys here were able to train thouse to take meat and tetra reptomin