I actually wrote this yesterday, but was unable to access the forum when I went to post it. That?s why it duplicates info posted since then. Sorry.
Your night time minimum can affect whether it will eat or not. An overall drop of around 5[SUP]o[/SUP]C overnight will make no difference but if it is dropping up to 10[SUP]o[/SUP]C or more, than is certainly likely to affect feeding. The temperature the snake itself reaches is what is important and this depends not only on cage temps, but also how efficient the animal is in conserving body heat overnight. Snakes can conserve heat by tightly coiling their bodies, presenting less surface area for heat loss, within in a well insulated spot with minimal airflow. The physical characteristics of its hide or wherever else it camps at night, has a large influence here. If it is the case that night time cage temperatures are dropping too low, you could try providing low-level supplementary heating at night. A good indicator of night temps being too low, given you are not deliberately cooling the animal over the winter half, is a marked reduction in night time activity levels.
Irrespective of the temps, it could likely be due to the time of year. Many, if not most reptiles, can detect natural day length. Some respond to the shorter days by stopping feeding, even when the same heating and temperatures ranges are maintained year round. This is common with Antaresia in paeticular. If this is the case, it may well not eat again until spring. This is no cause for concern if your snake is healthy and in reasonable condition.
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