King Aquarium

King Aquarium has been a fixture in the San Jose aquarium scene for years, drawing loyal customers who keep coming back for its wide variety of freshwater fish. The store is best known for its impressive selection of African cichlids — regulars praise the hardy, beautifully colored specimens that have thrived in home tanks for years after purchase. The large display tanks at the front of the store make an immediate impression when you walk in, showcasing the breadth of what's available.

The owner is frequently mentioned as friendly and willing to share advice, and several reviewers describe the staff as passionate and knowledgeable about fishkeeping. It's the kind of place where you can have a real conversation about stocking, compatibility, and care — not just point and buy. Longtime customers note that the store has been a reliable source for quality freshwater species over many years.

That said, King Aquarium isn't without its critics. Some reviewers have raised concerns about tank cleanliness and the housing conditions for bettas, noting that the fish are kept in small cups without visual barriers, which can lead to stress and fin damage. One customer who tested the cup water at home found elevated ammonia levels, suggesting the betta water may not be changed frequently enough.

It's worth inspecting fish carefully before purchasing, particularly bettas, and asking the staff about their care routine. King Aquarium is a straightforward, old-school fish store — no frills, no flashy branding, just tanks full of freshwater fish and a knowledgeable owner who's been at it a long time. If you're in San Jose shopping for African cichlids or building out a freshwater community tank, it's worth a visit for the selection and the personal guidance you'll get.

Just be sure to check their posted hours before you go, as at least one customer has found the doors closed during listed business hours.