Hi
I have had great success using oatmeal in a 2 litre icecream container. I usually just put about a centimetre of rolled oats in the bottom of the clean ice cream container and cover with water. Once the water has been soaked up I seed it with some of the worms from my previous culture, put the top on and sit it somewhere safe. I like to open it every day for air and within a week you can see the worms climbing the sides of the container.