I found it much easier to just buy them from a shop then continue making them myself. Before I knew it I had 4 different kits running so that I could have fresh shrimps daily. The kitchen looked like a meth lab with this giant airpump running 4 inverted soda bottles. Then you have to seperate the shells from the shrimp. eventually I found that part the most frustrating and would toss it all in the tank. I know I have at least one of those kits left somewhere you could have.