If properly set up then Dart Frogs make excellent frogs. Regular fish tank hoods would not work. DFs are masters at escaping. You'd want to buy a glass top to help keep them in and the humidity up. Azereus would probably be a good species to start with. I don't know much about breeding them, but if interested in doing that you will have to create a rain chanmber to similate a heavy down pour to get them in the mood.