I have had my bp for almost a week he's in a zoo med 20 gallon mesh top glass tank his heat mat on hot side 90f but cool side is 70f to 72f I've tried heat lamp with and without stand at 100w 75w 50w 25w only on the hot side and it's just heating hot side not really changing ambient temperature much so the cold side is way too cold and with lamp hot side gets a bit too hot for my liking if any one can help much appreciated thanks