Welcome to the forum Wappajack! You did the right thing as to set him up before getting the frog.The temps are good and the humidity could be a little higher. nothing above 75, Usually RETFs are misunderstood as being in constant humidity in the jungle. The cocoa fiber is the safest option for the little guy because if he dose swallow it, he can pass it easily, He can as you mentioned swallow the moss. The safest moss i think is is Zoomed Terrarium moss because it comes in big flat (size of hand) chunks that the frog cannot swallow. He may be a little iritated by the coco fiber at first but with regular misting of the substrate he should be fine When feeding your frog. its best to leave him in the terrarium with the crickets but make sure to feed him at night because he will be awake and the crickets can nibble on him when he's asleep You can dust with D3 every week. (good job in washing out the Pothos plant and growing it elsewhere) Your on a good start!

Bob