But moss is a hit and miss type thing. I have read a post about someone who has moss in her tank for 9 years before having trouble and almost loosing her frog (it swallowed enough moss that it needed surgery to get it out)
Better to use eco earth or bed a beast(same thing. It holds the humidity just as well, stays moist (my frogs aren't as bothered by it as they were with earth)
Yes a shallow water dish is good, but I would say, rather than it being an inch, that it just not go higher than the frogs head. It needs to sit in there comfortably without fear of drowning.
You may want to get a slightly larger tank, 15-20 gallon. Bigger is always better with frogs. Live plants can always be placed in the coco bedding, mine are doing quite well. and they don't need to be watered as often because the earth holds in moisture.
No one has mentioned water. Tap water is a nono, it contains alot of chemicals and stuff that can harm your frog. You can always treat it with a water conditionner, then let the water sit for 24 hours before giving it to your frog. Change the dish every day. Personally, I use the water you buy in 5 gallon jugs. Cheaper (bottles of conditionner are not cheap!) and you don't have to worry about quality and if you run out, you just go to the store and get more. yay.
if you can, lets see some pics!
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I think my frog owns a megaphone....
White's tree frogs : 1:1:0
Mantella viridis : 1:1:2