Saltwater Fish Shop
Get It Today
Imagitarium Nutmeg Aquarium Gravel
(51)$7.99 – $19.54
Buy 2 Save 30% - Mix & Match
Same Day Delivery EligibleAqueon 55 Gallon LED Aquarium Kit
(100)Buy Online, Pick Up in Store$199.99 was $249.99
Aqueon LED Aquarium Kit 20 Gallon High
(143)$134.46 was $139.99
Same Day Delivery EligibleBuy Online, Pick Up in StoreAqueon Versa Top 24" X 12" Hinged Glass Aquarium Top
(127)$21.99
Same Day Delivery Eligible
API MelaFix for Aquariums
(136)$7.29 – $12.82
Same Day Delivery EligibleCaribSea Arag-Alive Fiji Pink Aquariam Sand
(47)$14.99 was $24.99
Same Day Delivery EligibleAqueon Versa Top 48" X 18" Hinged Glass Aquarium Top
(83)$54.99
Same Day Delivery EligibleImagitarium Lantern Aquarium Decor
(53)$3.99 – $19.99
Buy 2 Save 30% - Mix & Match
Same Day Delivery Eligible
Petco Double Sided Shale Aquarium Background
(30)$18.99
Same Day Delivery EligiblePetco Reversible Aquarium Background in Blue/Amazon Waters
(19)$6.99
Buy 2 Save 30% - Mix & Match
Same Day Delivery EligiblePetco Double Sided Coral and Rainforest Aquarium Background
(17)$11.99
Same Day Delivery EligibleCaribSea Eco-Complete African Cichlid White Sand Substrate
(19)$22.39
Buy 2 Save 30% - Mix & Match
CaribSea Eco-Complete African Cichlid Zack Black Substrate
(16)$22.39
Buy 2 Save 30% - Mix & Match
Python Hook Accessory for No Spill Clean 'N Fill
(16)$20.99 was $22.99
Buy 2 Save 30% - Mix & Match
Petco Double Sided Amazon Aquarium Background
(18)$16.99
Buy 2 Save 30% - Mix & Match
Same Day Delivery EligibleCaribSea Eco-Complete African Cichlid Sand Substrate
(46)$22.39
Buy 2 Save 30% - Mix & Match
Aqueon OptiBright LED Light Fixtures
(48)$54.27 – $109.99
See Discount in Cart
Same Day Delivery EligibleBuy Online, Pick Up in StorePython No Spill 'N Fill Female Brass Adaptor Replacement Part
(2)$5.99
Buy 2 Save 30% - Mix & Match
Aqueon Beauty Max LED Aquarium Light Bulb
(18)$19.99 – $39.99
Same Day Delivery EligibleCaribSea Eco-Complete African Cichlid Gravel Substrate
(3)$22.39
Buy 2 Save 30% - Mix & Match
Aqueon Color Enhancing Goldfish Granules
(16)$2.57 was $7.99
35% off your first Repeat Delivery
Same Day Delivery EligibleImagitarium Slate Rock Aquarium Gravel Accent Mix
(1)$4.99 – $4.99
Buy 2 Save 30% - Mix & Match
Imagitarium Resin Ruins with Faces Aquatic Decor
(13)$24.99
Drs. Foster and Smith Premium Activated Carbon Granules
(4)$29.99 was $32.99
Buy 2 Save 30% - Mix & Match
Coralife Seascape Mini LED Aqualight
(29)$79.99 was $99.99
See Discount in Cart
Same Day Delivery EligiblePython No Spill 'N Fill Male Brass Adaptor Replacement Part
(3)$5.99
Buy 2 Save 30% - Mix & Match
Penn Plax Hank on Sand for Goldfish
(1)$4.99
Aqueon Max Blue LED Aquarium Light Bulb
$34.99 – $39.99
Same Day Delivery EligibleOmega One Super Veggie Green Seaweed
(78)$9.99
35% off your first Repeat Delivery
Same Day Delivery EligibleOmega One Super Color Flakes
(125)$5.99 – $18.99
Buy 2 Save 30% - Mix & Match
Same Day Delivery EligibleOmega One Freeze Dried Brine Shrimp
(67)$8.99
35% off your first Repeat Delivery
Same Day Delivery EligibleKent Marine Micro-Vert Invertebrate Food for Fine Filter Feeders
(14)$9.48 was $10.99
Same Day Delivery Eligible
Hikari First Bites
(149)$4.99
35% off your first Repeat Delivery
Same Day Delivery EligibleOmega One Garlic Marine Slow-Sinking Mini Pellets
(40)$5.49 – $9.49
Same Day Delivery EligibleHikari Crab Cuisine Rapidly Sinking Sticks for Bottom Feeders & Crustaceans
(67)$4.99
35% off your first Repeat Delivery
Same Day Delivery EligibleHikari Seaweed Extreme Floating Algae Pellets for Smaller Marine Herbivores
(17)$6.99
35% off your first Repeat Delivery
Same Day Delivery EligibleAqueon Goldfish Flakes
(37)$2.68 – $8.44
Buy 2 Save 30% - Mix & Match
Same Day Delivery Eligible
Saltwater Fish Supplies
Building a saltwater aquarium takes effort, but it can be an incredibly fulfilling achievement when complete. To begin building your aquarium, you’ll need to shop at a saltwater aquarium store for all the supplies you need—including a habitat, substrate, lighting, filters and more. Petco offers all the saltwater aquarium supplies you need to build and maintain a thriving and beautiful saltwater ecosystem. Once the aquarium is ready for its first inhabitants, we can also be your saltwater fish store. Come into your local store to purchase your Petco saltwater fish or order them online for added convenience. Not sure what saltwater fish need beyond stellar supplies? Then start by exploring our New Pet Guides for Saltwater Fish.