I'm interested in keeping this frog, but there's not a lot of info on them online. Any tips for keeping these guys?

Frog Forum - Red-Banded Rubber Frog - Phrynomantis bifasciatus

Would coconut husk fiber be a suitable choice for substrate? Humidity and temp levels? Will these guys make use of climbing structures? Could two frogs live comfortably in a ten gallon tank?