Have a 6 by 2 enclosure for my 4 Indian stars all over 5 inches. Currently I have 2 che’s and 1 basking light. Looking for a way to heat. The enclosure is a feeding tub and I have 3/4 covered with wood . Currently looking at temps of 78 to 87 with it being 50 degrees outside. Worried about temp dropping into the 40’s and 30’s .