Whites tree frog nose rubbing

[XmusJaxonFlaxonWaxon]

FINALLY got a pic of the other frog.

[Lija]

this is no good, you have to put both in separate quarantine enclosures and treat ASAP! all walls and bottom have to be covered in wet papertowels and some kind of brunch/plastic plant inside, use 5.0 UVB for both. keep both as clean as you can. having them both in separate enclosures you can also monitor their feeding.
i very strongly suggest to contact herp vet who works with frogs, if there are none in your area you can contact Dr. Frye ( his contact info in a sticky thread), get poop tested asap. while you're waiting for results I would use original ( without painkillers) polysporine or any other antibiotic cream. make sure it doesn't contain any painkillers!
nose rubs have to be treated asap and while doing so figure out what caused it. usually when the color is so dark it is indication that frog is not happy, it may be due to environment or parasites/protozoa and other inside problems. in a lot of cases it all is being complicated with stress, that I'm sure was here. they were obviously very resistant to stress levels, most of frogs would be stressed out way way sooner. one way or another noses gotta be treated asap, get both tested and I'd redo the tank ( cover the 3 sides of the enclosure)
the questions i have - how often a tank has being cleaned, how the routine clean up looked like, how their poop looked like, what percentage UVB are you using and how frequent are you changing the bulb?

and also make sure that temp and humidity are in correct range day and night.