About Us

Located in a western suburb of Milwaukee, Wisconsin, Aquatics Unlimited has an outstanding selection of freshwater fish, invertebrates and live plants for the aquarium and outdoor ponds. Aquatics Unlimited also has a large selection of marine fish, invertebrates and corals for any saltwater aquarium large or small. With over 12,000 square feet of floor space, Aquatics Unlimited carries a variety of products for the simple to advanced hobbyist to help ensure a successful aquarium or pond. Come visit us at 3550 S. 108th Street in Greenfield, Wisconsin 53228-1257. We are open from 12 P.M to 8 P.M. Monday through Friday, 10 A.M to 8 P.M. Saturdays and 11 A. M. to 7 P.M. on Sundays. We can also be reached by phone at 414-543-2552 or fax at 414-543-4929.


  • Over 12,000 square feet of livestock and products.
  • Over 500 display aquariums.
  • Over 10,000 gallons of freshwater.
  • Over 3,000 gallons of saltwater

Serving the Greater Milwaukee Area since 1969

It was in August of 1969 that Aquatics Unlimited first opened its doors on the corner of 95th Street and Greenfield Avenue in West Allis. Most of our dry goods fit on a single 8-foot shelf, our “cash register” was a cigar box, and all-glass aquariums were but a glimmer in somebody’s eye. On busy weekends, we doubled our staff to two. The past few decades have seen four different locations, a lot of water changes, and plenty of new faces, but our aim is still the same – to provide “The Best in Tropical Fish” and aquarium equipment. We’d like to take this opportunity to express our thanks to so many faithful customers who have helped us towards that goal.

Aquatics Unlimited IS “bestfish.com.”

In the 1990’s scramble for .com identities, Aquatics Unlimited was looking for a name that was (1) still available, (2) easy to remember and (3) easy for customers to type and spell correctly. Since our logo and advertising had contained “The Best in Tropical Fish” since 1969, www.bestfish.com was a natural choice. We are not affiliated with any other pet or aquarium business of that name, in either the real or virtual world.