Hate to get back off the subject, but Peppermint shrimp, are they safe for a reef tank? I have hear some conflicting opinions. I like the thought of something that can kill things I don't want in my tank. Unsure of them, though.
OK, I have an idea about a shrimp rearing vessel. My thought is there isn't enough volume for larval shrimp and much like discus rearing, there is something they secrete that has to be eliminated in order for this to work on a commercial basis. When I reared food shrimp, I was doing a slow 100% water change over the course of 10 days and had a 90% rearing success. We will see if my hypothesis is correct in about 3 months.
Raising them for something like that wouldn't be too bad. I will warn you, they are VERY labor intensive to do. There's green water to keep up with, then rotifers and the other zooplankton. It's not something that I'd want to do on an ongoing basis.