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Live Saltwater & Marine Aquarium Fish for Sale at Petco

With their beautiful colors and unique patterns, saltwater fish are an obvious choice for aquatic pet parents who want to showcase their marine centerpiece. While they are a sight to behold in your tank, saltwater aquarium fish do require a degree of maintenance that goes a bit deeper than their freshwater cousins. Many marine fish, for example, are more demanding of specific environment parameters and habitats as they are not used to the fluctuating temperatures freshwater swimmers experience. This means that they may require additional equipment like special heaters, water care, food and filters for their tanks. Some live saltwater fish also do not like to cohabitate with other species. It's important for budding aquarists to keep these in mind before filling their tanks with marine fish.

Frequently Asked Questions

Of course! Petco offers a variety of live saltwater fish, from Angelfish and Blennies to Tangs and Eels. Find the perfect saltwater fish for your aquarium today.

The easiest marine fish may vary depending on your current aquarium. Browse our aquatic care sheets to learn more about certain marine fish and find which ones are a good fit for you.

Saltwater thanks do require a degree of expertise to properly maintain. Learn more about how to set up a saltwater aquarium and the supplies you will need to ensure the well being of your fish.

You’ll want to learn what general supplies are needed for your tank 𑁋such as heaters, lighting, filtration, and more𑁋 and how to set up your saltwater aquarium to ensure the health and wellness of your fish.