I have been given a starter in powdered form. I want to get it activated. The instructions that came with it say to use white flour. I would rather have a rye starter. Can I use the powdered starter and activate it with rye in place of white or should I start it out as white and convert it to rye later? This is my first attempt at a starter so I am unsure of what I am doing. If I start it off as rye can I convert it to white or do I need to bother. Can I use a rye starter in a white or whole wheat bread recipe or vice versa.