Hello everyone. I have a question regarding heating and lighting my vivarium. The tank is 4ft long 2ft wide and 2t tall. The plants are real and it has 3 stream beds a waterfall that drops into a pond.. pillow moss and coco fiber as substrate. Nothing is planted in it yet cause i am unsure on light vs heat.. Im building it for my tree frogs. I usually buy the heat lamps but i wanna go with some more natural light for them and the plants since i am building an all natural viv for them.. The tepms have to be mid to high 80's. Im not worried bout humidity cause there will be plenty from the pond waterfall and streams...Do the flourescent lights give off heat or should i try a heat mat and get the heat from the bottom up. Please help.