Thanks! I had no idea about the timeline to get castings and couldn't find anything about it online. I have about 1000 worms in each of the two bins. Hopefully they are happy and will thrive. I had about 20 escapees the first night. Only 1 or 2 now. So I think they have settled in. (I hope!) I have them outside on my screened porch. If it gets too cold they will go inside my garage. How low of temps can they handle before they die? We are looking at 40's at night this coming week.