I just found this shocking tidbit on the FAQ at the DNR site
http://midnr.custhelp.com/cgi-bin/M...fiZwX3Byb2RfbHZsMj1_YW55fiZwX3BhZ2U9MQ**&p_li=
Am I right in thinking that a fish you have kept in an aquarium could catch a disease/parasite not native to Michigan waters? Wouldn't it be easier and smarter if you could go to the DNR and get a paper proving you caught the fish during the legal season
Question:I would like to setup an aquarium with native fish; bluegill, perch, bullhead. Is this legal? Can I get a permit? what are the laws on natural aquariums.
Answer:You can keep any legally caught fish in the state, during the open season. So if you are out fishing and you catch a couple of bluegill, perch and a bass, you could take those fish home and put them in your aquarium. Make sure the bass is at least 14 inches. You could keep the perch and bluegill all year, because the season for these two species is open all year. But the bass, would have to be released by December 31st, because bass season is only open until December 31st each year. You would not be able to keep any species past the closed season. Permits are only issued to places like Nature Centers, Schools etc, that actually teach children about the fish of Michigan. You can have an aquarium, but you can not have any species during the closed season in your possession.
http://midnr.custhelp.com/cgi-bin/M...fiZwX3Byb2RfbHZsMj1_YW55fiZwX3BhZ2U9MQ**&p_li=
Am I right in thinking that a fish you have kept in an aquarium could catch a disease/parasite not native to Michigan waters? Wouldn't it be easier and smarter if you could go to the DNR and get a paper proving you caught the fish during the legal season