My husband and I have been getting really heavy into the DIY caging, and we're working on a new vivarium for our bearded dragon. The build is under way, but we're a little confused about the lighting, specifically what type of bulb to use. We're looking at a simple 2ft T5 single bulb fixture that we'll be placing along the top of the back of the terrarium. Do we have to get the reptile bulbs, or do the horticulture bulbs work as well?