Ultimate Aquarium

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2625 S El Camino Real
San Mateo, CA 94403
Info Situated on the Peninsula between San Francisco and San Jose, the Ultimate Aquarium is conveniently located on El Camino right off CA-92 near the 101. Serving the San Francisco Bay Area since 1999, our experienced and helpful staff will assist you with any of your aquatic needs. From a simple goldfish to the most advanced reef set-up to extensive knowledge on all things fish, we can provide you with the information you need to keep your fishy friends happy.

Reviews

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4.0185 reviews
Michael C.
8/7/2025

Had a WOW MOMENT inside! Felt like being in Disneyland the 1st time! Selection of fishes, both fresh and salt water were awesome! To top it all, I thought I lost my Beats headset, so I called them...

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Sandy Y.
9/27/2025

This has to be one of the best aquariums I have been to in the Bay Area. Great selection, knowledgeable and helpful staff, and competitive prices.

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Bruce B.
10/12/2025

One of the only places to get salt water. Salt water and RODI. Good selection of live stock

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Jennifer S.
9/7/2025

Local fish shop with a wonderful variety of fish! It isn't very big in terms of square feet, but lots of fish to see and pick from. The store is well managed and service was wonderful when we...

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Janice V.
8/17/2025

Love this store's selection and service. They will give you advice on how to stock your tank and they always have great selection of fish.

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