Dartfrogs enclosures can be very decorative if are well planted. Dendrobates frogs dont really need plants for their living, but the plants are for sure increasing their wellfare and for us, they are making terrariums looks better. They serve aswell for increasing the segmentation of the tank, and providing hiding places,  which serves good for the decrease chance of bullying of weaker frogs, if we keep greater groups of frogs. The important role of the living plants in the terrarium is to maintain the ecosystem and microclima . Because of that, we should keep at least few modest plant species in our tanks, even if we wont spent too much time with demanding species.  Relative stabile conditions in the terrariums is convenient for plants which are coming from understore of the tropical humid rainforests – those plants are comfortable with high humidity and insufficient of light.