It may be too late to save the sick one, but I would try dropping the humidity (no misting, but keep a bowl of clean water in there for soaking) and create a slightly warmer basking spot, a 15-25 watt bulb should do the trick (on during the day, off at night). Bacterial infections are common in imported red eyes and the warmer, drier conditions will help them fight it. I would also consult a vet, local would be best to get meds quickly if they are needed but if you do not have a suitable vet nearby you can contact Dr. Frye via email (dr.frye.dvm@sbcglobal.net), send clear photos and detailed info on the symptoms, origin of the frogs and husbandry. If the female is asymptomatic she may not require any treatment, but should be quarantined just like any new arrival.