First off, pet store guy is completely wrong. Ball pythons require humidity to be at least 60-70% for optimal health, shedding, etc. A good idea is to not take advice from people in pet stores.
Second, some people night drop their temps, but personally I just maintain constant temps from day to night. To achieve this you can use ceramic heating elements in place of the light bulbs for constant heat that doesn't produce light. Or you can use an infrared bulb that gives off very little light, and use it at both day and night.
Third, do you mean that the ambient temps in your house get down to 68 at night, or the temps in the cage get down to 68 at night? High sixties is ok for the room temps, as long as the ambient temps are higher in the cage.
Reply With Quote