Deals on fish & aquariums

Build your most beautiful underwater ecosystem yet

Marine & Freshwater

(184 results)
Full Cheeks™ Odor Control Small Pet Paper Litter & Bedding - Grey
2 sizes
(236)
$14.99 - $24.99
Save 35% On Your First Autoship Order!
Earn a 5,000-point Reward Certificate when you get your second Autoship delivery by 11/30
+ 2 more
Full Cheeks™ Odor Control Small Pet Paper Bedding - Classic White
3 sizes
(266)
$14.99 - $36.99
Save 35% On Your First Autoship Order!
Earn a 5,000-point Reward Certificate when you get your second Autoship delivery by 11/30
+ 2 more
Full Cheeks™ Natural Timothy Hay
7 sizes
(607)
$6.99 - $32.99
Save 35% On Your First Autoship Order!
Earn a 5,000-point Reward Certificate when you get your second Autoship delivery by 11/30
+ 2 more
Full Cheeks™ Odor Control Small Pet Paper Bedding - Natural
2 sizes
(209)
$27.99 - $36.99
Save 35% On Your First Autoship Order!
Earn a 5,000-point Reward Certificate when you get your second Autoship delivery by 11/30
+ 2 more
Full Cheeks™ Small Pet Aspen Bedding
2 sizes
(281)
$12.99 - $24.99
Save 35% On Your First Autoship Order!
Earn a 5,000-point Reward Certificate when you get your second Autoship delivery by 11/30
+ 2 more
Full Cheeks™ Odor Control Small Pet Paper Bedding - Confetti Party
(132)
$31.99
Save 35% On Your First Autoship Order!
Earn a 5,000-point Reward Certificate when you get your second Autoship delivery by 11/30
+ 2 more
Full Cheeks™ Odor Control Small Pet Crumbled Paper Bedding - Lavender & Coconut Scent
(163)
$26.99
Save 35% On Your First Autoship Order!
Earn a 5,000-point Reward Certificate when you get your second Autoship delivery by 11/30
+ 2 more
Full Cheeks™ Small Pet Pine Bedding
2 sizes
(220)
$13.99 - $24.99
Save 35% On Your First Autoship Order!
Earn a 5,000-point Reward Certificate when you get your second Autoship delivery by 11/30
+ 2 more
Full Cheeks™ Small Pet Timothy Hay Hoop Rabbit Chew
(163)
$5.99
Save 35% On Your First Autoship Order!
Earn a 5,000-point Reward Certificate when you get your second Autoship delivery by 11/30
+ 2 more
Full Cheeks™ Small Pet Veggie Lovin' Kabob - Treat & Chew
(164)
$11.29
Save 35% On Your First Autoship Order!
Earn a 5,000-point Reward Certificate when you get your second Autoship delivery by 11/30
+ 2 more
Full Cheeks™ Natural Orchard Hay
(4)
$13.99
Save 35% On Your First Autoship Order!
Earn a 5,000-point Reward Certificate when you get your second Autoship delivery by 11/30
+ 2 more
Full Cheeks™ Guinea Pig Foraging Food
2 sizes
(100)
$15.99 - $25.99
Buy 2 get 3rd 50% off ALL small pet food
Save 35% On Your First Autoship Order!
+ 3 more
Full Cheeks™ Peas & Carrots Mix Small Pet Treat
(4)
$5.99
Save 35% On Your First Autoship Order!
Earn a 5,000-point Reward Certificate when you get your second Autoship delivery by 11/30
+ 2 more
Full Cheeks™ Small Pet Roll-A-Round Willow Ball Chew
(66)
$6.29
Save 35% On Your First Autoship Order!
Earn a 5,000-point Reward Certificate when you get your second Autoship delivery by 11/30
+ 2 more
Full Cheeks™ Small Pet Crunchy Sticks - Strawberry
(5)
$6.99
Save 35% On Your First Autoship Order!
Earn a 5,000-point Reward Certificate when you get your second Autoship delivery by 11/30
+ 2 more
Full Cheeks™ Herbs & Flowers Forage Salad
(143)
$7.99
Save 35% On Your First Autoship Order!
Earn a 5,000-point Reward Certificate when you get your second Autoship delivery by 11/30
+ 2 more
Full Cheeks™ Small Pet Timothy Hay Sticks - Treats & Chews
(40)
$6.49
Enjoy Free Same-day delivery!
Enjoy Free Shipping On Orders $49+.
Full Cheeks™ Small Pet Apple Slices
(80)
$5.99
Save 35% On Your First Autoship Order!
Earn a 5,000-point Reward Certificate when you get your second Autoship delivery by 11/30
+ 2 more
Full Cheeks™ Small Pet Papaya Bites
(84)
$5.99
Save 35% On Your First Autoship Order!
Earn a 5,000-point Reward Certificate when you get your second Autoship delivery by 11/30
+ 2 more
Full Cheeks™ Small Pet Banana Blueberry Pieces
(140)
$5.99
Save 35% On Your First Autoship Order!
Earn a 5,000-point Reward Certificate when you get your second Autoship delivery by 11/30
+ 2 more
Full Cheeks™ Comfy Home & Hideaway Guinea Pig and Rabbit Habitat
(214)
$174.24
$204.99
Enjoy Free Same-day delivery!
Enjoy Free Shipping On Orders $49+.
Full Cheeks™ Simple & Spacious Home, Rabbit or Guinea Pig Habitat
(4)
$67.99
$79.99
Enjoy Free Same-day delivery!
Enjoy Free Shipping On Orders $49+.
Full Cheeks™ Odor Control Small Pet Paper Bedding - Blue Skies
(141)
$36.99
Save 35% On Your First Autoship Order!
Earn a 5,000-point Reward Certificate when you get your second Autoship delivery by 11/30
+ 2 more
Full Cheeks™ Hamster Starter Kit
(275)
$76.49
$89.99
Enjoy Free Same-day delivery!
Enjoy Free Shipping On Orders $49+.
Full Cheeks™ Odor Control Small Pet Paper Bedding - Pacific Rain
2 sizes
(156)
$23.99 - $34.99
Save 35% On Your First Autoship Order!
Earn a 5,000-point Reward Certificate when you get your second Autoship delivery by 11/30
+ 2 more
Full Cheeks™ Odor Control Small Pet Paper Bedding - Candy Delight
(100)
$31.99
Save 35% On Your First Autoship Order!
Earn a 5,000-point Reward Certificate when you get your second Autoship delivery by 11/30
+ 2 more
Full Cheeks™ Easy Build Spacious Home
(134)
$157.24
$184.99
Enjoy Free Same-day delivery!
Enjoy Free Shipping On Orders $49+.
Full Cheeks™ Split-Level Rabbit Habitat - Includes Cage, Shelf, Ramp, Wheels, & Feeding Accs.
(81)
$203.99
$239.99
Enjoy Free Same-day delivery!
Enjoy Free Shipping On Orders $49+.
Full Cheeks™ Quick Clean Small Pet Habitat - Includes Cage, Wheel, Food Dispense, & Water Bott
(540)
$89.24
$104.99
Enjoy Free Same-day delivery!
Enjoy Free Shipping On Orders $49+.
Full Cheeks™ Modular Play & Exercise Pen With Liner
(4)
$79.99
Enjoy Free Same-day delivery!
Full Cheeks™ Odor Control Small Pet Paper Bedding - Cozy Clouds
2 sizes
(148)
$20.99 - $32.99
Save 35% On Your First Autoship Order!
Earn a 5,000-point Reward Certificate when you get your second Autoship delivery by 11/30
+ 2 more
Full Cheeks™ Odor Control Small Pet Paper Bedding - Rainbow Confetti™
(14)
$36.99
Save 35% On Your First Autoship Order!
Earn a 5,000-point Reward Certificate when you get your second Autoship delivery by 11/30
+ 2 more
Full Cheeks™ Rat Starter Kit
(226)
$101.99
$119.99
Enjoy Free Same-day delivery!
Enjoy Free Shipping On Orders $49+.
Full Cheeks™ Glass Water Bottle
2 sizes
(190)
$11.99 - $14.99
Enjoy Free Same-day delivery!
Enjoy Free Shipping On Orders $49+.
Full Cheeks™ Rabbit Foraging Food
2 sizes
(90)
$15.99 - $25.99
Buy 2 get 3rd 50% off ALL small pet food
Save 35% On Your First Autoship Order!
+ 3 more
Full Cheeks™ Small Pet Handwoven Twig Tunnel
(51)
$16.99
Enjoy Free Same-day delivery!
Enjoy Free Shipping On Orders $49+.
Full Cheeks™ Small Pet Top Entry Travel Carrier
(126)
$29.99
Enjoy Free Same-day delivery!
Enjoy Free Shipping On Orders $49+.
  1. 1
  2. 2
  3. 3
  4. 4
  5. 5

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.