Re: [buildlog] first tank 30g
No problem about plants and frogs, unless you do not want a biotope vivarium. Climbing plants, as ficus, some ferns, bromeliads (these unnecessary for certain species), in short all plants typical of a rainforest viv, as you can see in many examples here, are good. These plants are also easy to find in local stores.
About frogs loving rocky habitat, I can think Hylolaxus azureiventris, but it is not easy to find these frogs. They are very nice frogs, but underrated.