I have dendrobates too, Patricia, leucs and sipaliwini, All kept separately obviously to avoid cross breeding, I didn't think I would love keeping them as much as I do but they are wonderful creatures, exquisite and fascinating to watch.personally I don't keep a pair in anything less than 18" sq, I don't know how much you know but the thing that caught me out is the amount they eat and unlike lizard food that is stocked by pet shops , fruit flies are not sold very often even in specialist rep shops so I had to order and then started growing my own cultures but they eat a large amount of flies a day.
If you want to grow plants, and believe me I have always managed to kill plants very well, get Arcadia jungle dawn lights, I kid you not but my vivs are all live planted and the plants are amazing, they don't grow leggy or yellow, they are so healthy and vigorous, never grown plants like it and you'll certainly need live plants for frogs.
Well all will be revealed soon I guess!