I'm planning on getting some nocturnal frogs in the future and noticed that they need heating 24 hours a day, but only need lighting for 12 hours. Would I have to switch bulbs every 12 hours with one that emits light and one that doesn't? I feel like I'm overlooking something here... but I'm just a bit lost. (And, if it matters, the frogs I were looking into were Borneo Eared Tree Frogs.)