I'm also new to dart frogs and I have Leucs and D. azureus. Dart frogs are a lot hardier than what you would think. My azureus are always out and jumping around. They also seem to be attentive and somewhat personable to my presence - I know I shouldn't assign human behavior to an animal but they don't flee when I stick my hand in the tank to change their water dish and they also come up to the glass and watch me.

If I could offer one bit of advice with my limited experience...Learn the whole science of vivarium construction and maintenance before you get your frogs. I consider it a whole hobby onto itself. Good luck.