I found and I used this blend for two cycles of worms. About 7 months. Here it is. I by two boxes of dry oats and one box of corn meal. I have been collecting eggshells. I put them into the microwave for a little while to dry them out. Crush them with my hands and set them on the side. I collect about 3 dozen eggshells at a time. Put all together, two boxes of dry oats, one box of corn meal, and egg shells in a blender. Mix all until everything is in powder form. Believe me you will have all you need for your worms. Will last a long time. I store all in a large gallon pickle jar. It makes about 3/4 of a gallon. Enjoy.