I have a planted tank set up for my frogs, however, the substrate has a number of chunky things in it. I put down leaf litter, but I know that my sub adult White's likes to try to hide underneath the paper towel. Do you think there's any danger of them getting to the sticks? Should I put down more ground cover fern?

More importantly, my sub adult has been treated unsuccessfully for protozoa. He's currently symptom free, having fairly solid poops, but should I risk moving him to the tank? I don't want to have to redo it.

I know that protozoa is fairly common and not harmful, but when my little frog gets big enough to move in I don't want to expose him to some foreign strain or something. Any ideas?