Your humidity is to low. It needs to be closer to 90%. The temp up around 82 will kill them in short order. Better to be in the low to mid 70s like you are now.

You do not have them all housed together do you? That will stress them out big time and will lead to them not eating and slowly withering away. Stress in frogs is a serious thing. I know it sound minor, but a stressed frog is prone to contracting all sorts of opportunistic diseases that will end badly.

What size tank are they in?

Citronella get bid (2.5-3) they dont climb and like lots of floor space. I have my breeding pair of Cits in a 24x18 tank and they use every last inch of the surface area.

Powder blues and Patricias are smaller than Cits as adults, but will not climb much either. They need at least 18x18x18 tanks.

What type of flies are you using? Hydie or Melo?

You should be dusting the flies with each feeding. You need a Multi Vit supplement and a Clacium w/D3 supplement. The super pig is optional. Rapashey Calcium plus is a great staple supplement to use.