www.google.com
use search words like:
St. Paul or Woodbury or Eagan with words like pet store, fish store, aquarium
call them
in the middle of the day on a weekday when they are not busy and have time to talk to you and asked them:
1) if they have a website
2) what kinds of livestock they carry, how much stock, what is their "niche" market (i.e. high volume/run-of-the-mill stock -or- expensive exotic stock)
lastly:
google to see if you can find a
Reef Club in and around the areas you are looking at. if you can find a Reef Club webboard that would be
GOLDEN place to ask questions.