The reason I asked about the frog in the first and second picture is that its left forelimb appears to be slightly malformed insofar as it's bent inwards in both pictures. I suspect that Jupiter's hind legs are not as they should be too. I think that both frogs should be okay though in the protected environment of a tank. Unfortunately this sort of thing isn't uncommon and deformed forelimbs afflict different species of froglets, most notably in poison dart frogs, where the condition's known as "spindly leg syndrome". I don't know the reason for it. The best thing you can do is continue looking after the frogs as as well as you have been doing so far.