Welcome to Sanctuary Aquatics, where we invite you to embark on an immersive journey into the vibrant world of tropical and marine aquatic life.

We carry many species of freshwater and saltwater fish, from fish for beginners to unusual and hard to find varieties. We have a very large and diverse inventory of coral from around the world, including many collector coral. Of course, we have a good inventory of equipment and supplies for hobbyist of all levels.

Our expansive retail store is a testament to our passion for the natural world, offering a unique perspective on what a tropical fish store could be. It features a stunning 10,000-gallon saltwater lagoon, meticulously designed and showcasing over 50 varieties of saltwater fish. Additionally, we have 5,000 gallons of freshwater and saltwater display aquariums, each serving as a living canvas for tropical fish, vibrant corals, and captivating underwater landscapes.



We seek to apply the best science and engineering in the aquarium environemts we create, the practives we use, and the guidance we provide.


Sustainability is a core value. We promote responsible collection practices, advocate for sound conservation and responsible animal collection. Also we prioritize the selling of captive bred fish and aquacultured coral.


Through our guided tours, “how-to” videos, and the guidance we provide, we hope we make this hobby more enjoyable and fulfilling for those already engaged and that we inspire a new generation of enthusiasts.


Whether you're a local or your visiting South Eastern Wisconsin or the Fox River Valley, we invite you to explore our store. From our impressive 10,000-gallon reef lagoon to numerous display aquariums, we promise an enriching visit. Find us at 2923 Jackson Street in Oshkosh, WI, just a short drive from Highway 41, south on Jackson Street. No admission fee is required at Sanctuary Aquatics.

Schedule A Tour

Plan your group tour at Sanctuary Aquatics for an immersive experience. Click the 'Schedule A Tour' tab on our website to book, specifying group size, desired date, and interests. Our marine biologists tailor tours for various age groups, focusing on subjects like animal biology or ecosystem preservation. Tours typically last 1-1.5 hours, offered between 9:00 am and 12:00 pm, costing $50 for the group plus $5 per attendee, with advance booking options for coral and African Cichlid farm visits at an additional fee.