How can I effectively heat a leopard gecko tank to ensure the optimal temperature for my pet's well-being?

To effectively heat a leopard gecko tank, use an under-tank heating pad or heat lamp on one side of the tank. This creates a temperature gradient, with one side warmer than the other. The warm side should be around 88-90F (31-32C) for daytime and slightly cooler at night. Use a thermostat to regulate the temperature and prevent overheating. Additionally, provide hides and other decor for your gecko to regulate its body temperature as needed.