If you really want to have a planted terrarium, go for it! ive started out with some planted terrariums that are thriving and all you need to do is provide proper lighting and spot clean poop. Red eyed tree frogs would be suited in a planted tank, Lynn & Heather k best. the terrarium size sounds good. Other tree frogs that would be an intermediate species would be maybe big eyed tree frogs or golden tree frogs.