Don't know if you have seen this, but here is a link to the PDF list of licensed aquaculture facilities in Michigan. You need to go down to where it says List of Licensed Aquaculture Facilities in Michigan. A PDF will open.
Michigan Aquaculture The bait companies may be able to get you anything they have on their list for feeder fish, but you have to call first and see what is available. Otherwise, some fish farms may have what you are looking for.
Hope this helps.
