Im going to be up in Detroit this Fri and Sat and want to check out a few shops iv been to a few like fantastic fins and 101 just want to see what else may be up around that area that is worth checking out.
stingray bay is my goto place for frozen foods, cheaper even then petsmart, and my last air pump was 2$ less than it was going for at PS.
http://www.oceansandseasinc.com/
is on gratiot south of 696 (11 mile). some impressive salt setups. with a good selection of freshwater.
http://www.greatlakesaquariums.com/
haven't been there, but they make their own tanks. I've read some rave reviews of their saltwater choices on another forum.