Originally Posted by
jasonm96
Keep them between 22-29.4C, with the daytime temps no cooler than 26C. They definitely need it warm and prolonged to the temperatures you have been recommended would cause problems.
I would not higher than a 40w bulb for heat, as they are not a basking species and a heat bulb will dry out the tank real fast. If that wattage of bulb isn't enough, then using an oil-filled radiator in the room to bump up temps is a better option than a more powerful bulb. Heat mats are okay too if used under half or less of the tank and controlled with a thermostat.
The majority of horned frogs are successfully kept without UVB. Adding lights may be beneficial, but there's probably no evidence to support it with this species. Just make sure to dust all food with a good supplement like Repashy Calcium Plus or similar brand that can be used at each feeding to ensure there's no shortfalls of vitamin D3.