Too skinny? And other issues. Please help!

[frogged]

They haven't been pooping, so in this case, there is no identifiable need to boil their accessories apart from the daily cleaning.
I just tried the warm water thingy, one of them farted, and the other just sat there. No signs of faeces yet.

Here are the photos so just check them out please! I think the two main guesses are along the lines of prey impaction and emaciation.
Note hip bone indentations, the line down the frog's back.

SLURP, the smaller, blue shade individual who did not start off with parasites, I am unsure if he caught it, but my current guess is no.
In the 3rd picture, Gulp is sitting below him.




GULP: The larger individual who came in with parasites. Like I said, I am unsure of his condition right now.


The last set of faeces I saw in the enclosure was a week ago, characteristic of improvement from a parasite infested frog, but I cannot honestly point out who it belonged to.