Three-Legged Tree Frog

I went out herping/ inverting the other day, and didn't find much, except for one little guy that I had to bring home. It's a metamorph gray (possibly cope's) treefrog who is missing one of his back legs. I think it is an injury and not a deformity, because there is still a mark on the stub. I've had him in a terrarium that I recently had set up for plants (I'll move him to something else soon) and he's eating good so far. I've never seriously taken care of a treefrog (I kept them in cages when I was much younger) and I have a few questions. Do they need UV light? at the moment he's next to a window, but I want to know in case I need ot move him. Also, are small crickets and tiny roaches, isopods, etc. that I find outside ok for feeding (he'll probably be switched over to b. dubia once he's larger) Also, any special care that a novice would neglect, or are they fairly simple to keep (food, water, shelter, heat, etc,).

Here's a pic of him: