A stylized teal fish with the letters AU in white across its body, enclosed within a teal circular border on a white background, representing in store services.
SERVING MILWAUKEE SINCE 1969!

Over 12,000 sq. ft. of Livestock and Products

``The Best in Tropical Fish`` Aquatics Unlimited has an outstanding selection of tropical and pond fish, marine fish and invertebrates, aquarium and pond plants, and all the supplies needed to enjoy your hobby.

Expert Advice

We firmly believe that well-informed aquarists make the best customers. If you have a question as a beginner or an expert, just ask. We’ll try to answer from our years of experience – or help you look it up.

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WATER TESTING

We will test your aquarium water for the Ammonia, Nitrite, Nitrate, pH, hardness and specific gravity at no charge.  We also provide detailed water testing with higher accuracy (one full cup of water needed) for Ammonia, Nitrite, Nitrate, Phosphate, Phosphorous, Calcium, Alkalinity, Magnesium, and pH for a small service fee.

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TRADE-INS

We accept trade-ins on most healthy fish for in-store credit. We typically ask our customers to bring in trade in fish during weekdays/nights. We always accept donations and can help with rehoming for most fish. If you are a local fish breeder and wish to sell fish to the store please contact our Freshwater Manager.

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SPECIAL ORDERS

Even we can’t stock everything. But if we don’t have it, we’ll try our best to get it.

BUY ONLINE, PICK UP IN STORE

Have you seen our online store?  Take advantage of quick, convenient, online shopping on our website with economical shipping and in store pickup options.

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WATER FILLING STATION

We sell RODI water, mixed saltwater, and planted aquarium water in store by the gallon. Our self service water filling station allows you to easily and conveniently bring in and fill your own water containers, or we sell a variety of options.

LOOKING FOR MAINTENANCE SERVICES?

Visit Our Aquatic Realmz Page

Aquatic Realmz is our maintenance division, fully equipped to tackle all of your on site aquarium and pond needs.
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