UV light is TOTALLY unnecessary for any Gecko including Tokays. DO make certain you lightly dust crickets with Calcium powerder that has D3 added in it. Keep the tank about 85 degrees in the day; an over the top NIGHTGLO "Moonlight lamp" is excellent for this purpose, especially in the winter.
I use Bed-A-Beast for substrate because you can keep it lightly moist very easily (pouring some water in the substrate. A gentle under the tank heater helps keep the humidity up. (I use "Rheostat" that you can adjust the temps with a switch which is no different than a dimmer.)
So chunk the UV light--not necessary for Tokays.
Jade Fox

