I recently started to grow my own colony I have them in a dark 20gallon rubber made container. Have 2 reptile heating pads underneath. I need 85-90 degrees in order for breading to happen. My issue is my temps are always fluctuating. One hr it’s 78 and can go as high as 106 which is NOT good waaaay to hot!!! How do I manage to keep constant temps. And yes I am using a digital probe temp gauge