Hi there, I would say that yes, an email to the resident vet is in order if a herp vet isn't available in your area. You're right, the poo doesn't look good; both frogs should be tested for parasites. Hopefully someone in your area is able to do a fecal exam, as Dr. Frye is in the US.
The overall color of the frogs look fine to me.
Good luck, I hope they get better soon.