Fish

 
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Learn More about Petco's commitment to marine aquatic life

New Pet?

Find products and helpful tips to get you started on a happy, healthy life together.

Fish Anatomy 101

Fish Anatomy 101

Learn the basics of fish anatomy so that you can best care for your new aquatic pets.

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Four Tips for New Freshwater Fish Parents

Four Tips for New Freshwater Fish Parents

Read some tips that will help new freshwater fish parents to keep pets happy and healthy.

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Selecting the Right Saltwater Aquarium Supplies

Selecting the Right Saltwater Aquarium Supplies

It's important to carefully research and select the right equipment for your saltwater tank to ensure the well-being of your new aquatic pet.

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Fish and Aquarium Supplies, Food, Filters, and More

Find everything you need to take care of your fish, pond, or aquarium. Every fish needs a tank to call home. Whether you've got a Betta or a blue tang, you can find the right tank and essentials to suit your pet's needs. Tanks come in all shapes and sizes from the quarter-gallon acrylic desktop variety to the 75 gallon saltwater aquarium. The size of your tank depends on the type and quantity of fish you keep. Similarly, the accessories you need depend on the size of your tank and the type of fish you have. A wide selection of specialized equipment is available for freshwater or saltwater tanks including tank cleaning accessories, skimmers, salt mixes and reef lighting. All your fish's must-haves in one easy-to-find spot – shop for all the fish supplies and accessories your pet needs.