Deals on fish & aquariums

Build your most beautiful underwater ecosystem yet

Marine & Freshwater

(553 results)
Top Fin® Essentials Aquarium Starter Kit
8 sizes
(4187)
$55.99 - $229.99
Free Same-Day Delivery, No Order Minimum!
Top Fin® Large Power Filter Cartridges
(274)
$17.99
Buy 1 Get the 2nd 50% Top Fin, Tetra & Seachem Media
Free Same-Day Delivery, No Order Minimum!
+ 1 more
Top Fin® All-In-One Betta Aquarium Starter Kit - 3 Gallon
(417)
$52.99
Free Same-Day Delivery, No Order Minimum!
Top Fin® Pre-Conditioned Aquarium Water
2 sizes
(218)
$16.79 - $16.99
Buy 1 Get the 2nd 25% Off Top Fin Food & Watercare (excludes Pond)
Save 40% on your first Autoship order!
+ 2 more
Top Fin® Java Fern Live Plant
(38)
$5.39
Free Same-Day Delivery, No Order Minimum!
Top Fin® Silenstream™ Small Filter Cartridges
(63)
$14.99
Buy 1 Get the 2nd 50% Top Fin, Tetra & Seachem Media
Save 40% on your first Autoship order!
+ 3 more
Top Fin® Bow Front Aquarium Starter Kit -  36 Gallon
(461)
$189.99
$194.99
Free Same-Day Delivery, No Order Minimum!
Top Fin® Fascinate Column Starter Kit
(302)
$86.99
Free Same-Day Delivery, No Order Minimum!
Top Fin® PF-S Silenstream Aquarium Filter Cartridges
2 sizes
(227)
$8.99 - $17.99
Buy 1 Get the 2nd 50% Top Fin, Tetra & Seachem Media
Save 35% On Your First Autoship Order!
+ 2 more
Top Fin® Aquarium Hinged Glass Lid
7 sizes
(190)
$16.99 - $58.99
Buy any open glass tank, Get 20% off a glass hood
Free Same-Day Delivery, No Order Minimum!
+ 1 more
Top Fin® Element EF-S Filter Cartridges
3 sizes
(365)
$8.99 - $17.99
Buy 1 Get the 2nd 50% Top Fin, Tetra & Seachem Media
Save 35% On Your First Autoship Order!
+ 2 more
Top Fin® Split Bowfront Aquarium - 5 Gallon
(756)
$49.99
$59.99
Free Same-Day Delivery, No Order Minimum!
Sign In & Enjoy Free Shipping Over $49
Top Fin® Silenstream™ Aquarium Power Filter
5 sizes
(1485)
$15.59 - $49.99
Free Same-Day Delivery, No Order Minimum!
Sign In & Enjoy Free Shipping Over $49
Top Fin® Compact Aquarium Heater
3 sizes
(469)
$14.59 - $33.99
Free Same-Day Delivery, No Order Minimum!
Sign In & Enjoy Free Shipping Over $49
Top Fin® Premium Aquarium Gravel - Classic Beach
(64)
$7.99
3X points (6% back in savings) on all aquatic gravel
Free Same-Day Delivery, No Order Minimum!
+ 1 more
Top Fin® Premium Aquarium Gravel - Caribbean Sea Mix
2 sizes
(45)
$7.99 - $25.99
3X points (6% back in savings) on all aquatic gravel
Free Same-Day Delivery, No Order Minimum!
+ 1 more
Top Fin® Silenstream Filter Cartridge - 3pk
(111)
$8.99
Buy 1 Get the 2nd 50% Top Fin, Tetra & Seachem Media
Save 40% on your first Autoship order!
+ 3 more
Top Fin® Aquarium Airline Tubing
2 sizes
(96)
$4.99 - $7.69
Free Same-Day Delivery, No Order Minimum!
Sign In & Enjoy Free Shipping Over $49
Top Fin® Aquarium Sponge Filter
3 sizes
(202)
$9.99 - $19.99
Free Same-Day Delivery, No Order Minimum!
Sign In & Enjoy Free Shipping Over $49
Top Fin® Floating Glass Aquarium Thermometer
(238)
$3.99
Free Same-Day Delivery, No Order Minimum!
Sign In & Enjoy Free Shipping Over $49
Top Fin® Anubias Frazeri Live Plant
(43)
$5.39
Free Same-Day Delivery, No Order Minimum!
Top Fin® Anubias
3 sizes
(236)
$5.39 - $10.99
Free Same-Day Delivery, No Order Minimum!
Top Fin® Amazon Sword Live Plant
3 sizes 1 color
(165)
$5.39 - $12.99
Free Same-Day Delivery, No Order Minimum!
Top Fin® Fine Mesh Fish Net
(108)
$1.49
Free Same-Day Delivery, No Order Minimum!
Sign In & Enjoy Free Shipping Over $49
Top Fin® Aquarium Water Conditioner
3 sizes
(239)
$4.19 - $9.99
Buy 1 Get the 2nd 25% Off Top Fin Food & Watercare (excludes Pond)
Save 40% on your first Autoship order!
+ 3 more
Top Fin® Captivate Starter Kit
(414)
$129.99
Free Same-Day Delivery, No Order Minimum!
Top Fin® Aquarium Stand - 55 to 75 Gallon
(266)
$254.99
$299.99
Sign In & Enjoy Free Shipping Over $49
Top Fin® Internal Filter Cartridges
(30)
$7.99
Buy 1 Get the 2nd 50% Top Fin, Tetra & Seachem Media
Save 40% on your first Autoship order!
+ 3 more
Top Fin® Silenstream™ Large Filter Cartridges
(135)
$14.99
Buy 1 Get the 2nd 50% Top Fin, Tetra & Seachem Media
Save 40% on your first Autoship order!
+ 3 more
Top Fin® CN-S Corner Filter Cartridges
2 sizes
(48)
$8.99 - $14.99
Buy 1 Get the 2nd 50% Top Fin, Tetra & Seachem Media
Save 40% on your first Autoship order!
+ 3 more
Top Fin® Aquarium Stand - 55 to 75 Gallon
(141)
$209.99
Sign In & Enjoy Free Shipping Over $49
Top Fin® 10 Gallon Angled Aquarium
(139)
$89.99
Free Same-Day Delivery, No Order Minimum!
Top Fin® 5 Gallon Shrimp & Plant Aquarium
(89)
$69.99
Free Same-Day Delivery, No Order Minimum!
Sign In & Enjoy Free Shipping Over $49
Top Fin® Half Moon Aquarium - 3.5 Gallon
(2066)
$39.99
$44.99
Free Same-Day Delivery, No Order Minimum!
Sign In & Enjoy Free Shipping Over $49
Top Fin® Retreat™ RF-L Filter Cartridges
(107)
$14.99
Buy 1 Get the 2nd 50% Top Fin, Tetra & Seachem Media
Save 40% on your first Autoship order!
+ 3 more
Top Fin® Custom Colorflow™ Aquarium with 7 Color-Changing LEDs
3 sizes
(1373)
$48.07 - $69.99
Free Same-Day Delivery, No Order Minimum!
Sign In & Enjoy Free Shipping Over $49
Top Fin® Aquarium Stand - 20 to 37 Gallon
(139)
$152.99
$179.99
Sign In & Enjoy Free Shipping Over $49
Top Fin® Aquarium Stand - 20 to 37 Gallon
(124)
$152.99
$179.99
Sign In & Enjoy Free Shipping Over $49
Top Fin® LED Bubble Wall Aquarium Kit
2 sizes
(834)
$89.99 - $134.99
Free Same-Day Delivery, No Order Minimum!
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Explore Marine and Freshwater Fish at PetSmart

At PetSmart, we offer a diverse selection of freshwater fish for sale to help you create the perfect aquatic habitat. Whether you're setting up a tank for the first time or expanding your current ecosystem, our collection features a wide range of species, from vibrant GloFish tetra to elegant marine fish and lively freshwater tropical fish.

Discover Our Range of Fish and Aquarium Supplies

Choosing the right fish and accessories not only enhances the beauty of your aquarium but also ensures a healthy environment for your aquatic pets. Here's what you can find:
  • Freshwater Aquarium Live Plants: Ideal for adding natural beauty and improving water quality in your tank.
  • Live Freshwater Fish: Choose from a variety of species to populate your aquarium, including gentle and colorful options. Discover freshwater fish like; GloFish, Guppy, Angel, and more!
Visit PetSmart today to explore our freshwater fish shop and find everything you need to create a thriving aquatic environment. Enjoy the convenience of online shopping and free in-store pickup, or choose delivery for hassle-free service. Dive into our range of products and services to enhance your aquarium experience!

Frequently Asked Questions (FAQs)

What types of fish are available in-store?

Our stores feature an extensive selection, including popular species like GloFish, Guppy, Angel, and more! Availability may vary by location, shop online to determine availability.

How do I acclimate my new fish to the aquarium?

Gradually introduce your new fish to the tank environment by floating the sealed bag in your aquarium to equalize water temperature and slowly mixing tank water into the bag before release.

What should I feed my freshwater and marine fish?

Offer a varied diet that includes high-quality flakes, pellets, and occasional live or frozen foods to ensure balanced nutrition.