I water and mist the plants aiming for 60-80% humidity in the tank. The plants are rooted in coconut fiber, and fertilized by whatever the toads and toad food leaves behind. I occasionally pull of dead leaves, etc, but most of the time, I leave them in there for the crickets to eat. I replace the water about once a month, and put in a neew filter once a month. That's about it, really.