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Saltwater Fish
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
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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.
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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.
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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.
Pink Saltwater Fish
Brackish Water Fish
Exotic Marine Fish
Large Aquarium Fish
Exotic Fish
Cool Fish
Blue Freshwater Fish
Saltwater Fish Medications
Coral Reef Fish
Yellow Freshwater Fish
Freshwater Catfish
Long Aquarium Fish
Medium Size Aquarium Fish
Popular Aquarium Fish
Black Aquarium Fish
Saltwater Fish Tank Stands
Pink Tropical Fish
Aquarium Fish With Stripes
Hardy Aquarium Fish
Tropical Fish Varieties
Aqua Natural Pet Clearance
Live Plants
Fera Pets
Live Insects
Healthy Select Parrot Shop
Healthy Select Parakeet Shop
Live Insects Live Reptile Food
Live Insects Reptile Food
Petco Accessories
Healthy Select Cockatiel Shop
Petco
Fera Pets Cat Health & Wellness
E&S Pets Fall Faves
Fera Pets Dog Food
Live Plants Bioactive Terrariums
Birdfy Wild Bird Supplies
Oxbow Pet Clearance
Fera Pets Dog Health & Wellness
Zoo Med Reptile Food
Cat Lures
What type of saltwater fish can I have in a 10 gallon tank
Is it possible to keep wild caught saltwater fish as pets?
Hi so I don't really like freshwater tanks so I have never been that committed and never had much success except keeping a koi and breeding cherry shrimp which I still have so I was wondering am i ready for a saltwater tank? since I love saltwater tank
How to keep salt water as a pet?
30 gallon freshwater tank 6 peaceful community fish, planted tank. nitrite0, Ammonia0, nitrates low. ph 7. One molly died quick and sudden. another molly (bloated not pregnant) bottom of tank looked dying. put in salt. She improved. wite tube poop. still swimming bit crooked. one neon tetra swim bladder died. another tetra very bloated. parasites?
I have a fish tank my first with 6 Angel fish, want to know what's the best type of fish to ad to give it a beautiful decorations
Hello! I'm looking to add some additional fish to my 36 gallon reef tank. So far, I have an orange firefish, 2 ocellaris clowns, a fire shrimp, a peppermint shrimp, and 4 blue legged hermit crabs. Do you have any recommendations other than damsels?
What if you only have freshwater or saltwater what’s more needed
I have a 20 gallon tank. I'm thinking of buying +5 fish. Which fish could I buy and what would I need for the fish and tank?
My marine class are getting Silver Perch. We are putting them in this enclosure. What type of equipment will we need to keep them away from disease, pests, and also what filters and water temperature will we need to keep them alive. How do we breed them and what type of food is needed.
Which category male flower fish add with couple of yellow blood parrot fish(male and female both are) in a (42L×7w×18h)inch water tank ? Can u guide to me this successful breeding process ? In a currently I have only two yellow parrot fish.
I have two male fish that I'm not sure of the breed there names are Ben(Benny) and Rosco can u please help