Deals on fish & aquariums

Build your most beautiful underwater ecosystem yet

Marine & Freshwater

(188 results)
Wellness® Complete Health Adult Dog Food - Natural
4 sizes 4 flavors
(1030)
$19.99 - $69.99
Earn 5,000 points ($10 back in savings) when you spend $60+ on dog food.
Save 40% on your first Autoship order!
+ 3 more
Wellness® Complete Health Large Breed Adult Dog Food - Natural
(110)
$69.99
Earn 5,000 points ($10 back in savings) when you spend $60+ on dog food.
Save 40% on your first Autoship order!
+ 3 more
Wellness® CORE® Adult Dry Dog Food - Natural, Grain Free, Ocean Formula
2 sizes 1 flavor
(386)
$20.99 - $77.99
Earn 5,000 points ($10 back in savings) when you spend $60+ on dog food.
Save 40% on your first Autoship order!
+ 3 more
Wellness® CORE® Adult Dry Dog Food - Natural, Grain Free, Original Formula
3 sizes 1 flavor
(446)
$20.99 - $77.99
Earn 5,000 points ($10 back in savings) when you spend $60+ on dog food.
Save 40% on your first Autoship order!
+ 3 more
Wellness® Complete Health Adult Cat Wet Food - Natural, Grain Free, Pate, 12.5 Oz
1 size 7 flavors
(5067)
$4.59 - $4.79
Save 40% on your first Autoship order!
Earn a 5,000-point Reward Certificate when you get your second Autoship delivery by 11/30
+ 2 more
Wellness® CORE+ Freeze-Dried Pieces Adult Dry Dog Food - Grain Free, Wild Game
3 sizes 1 flavor
(508)
$23.99 - $81.99
Earn 5,000 points ($10 back in savings) when you spend $60+ on dog food.
Save 40% on your first Autoship order!
+ 3 more
Wellness® Complete Health Small Breed Adult Dry Dog Food - Natural
2 sizes 1 flavor
(335)
$19.99 - $44.99
Earn 5,000 points ($10 back in savings) when you spend $60+ on dog food.
Save 40% on your first Autoship order!
+ 3 more
Wellness® CORE+ Small Breed Adult Dry Dog Food - Grain Free, Freeze Dried, Turkey
2 sizes 1 flavor
(545)
$23.99 - $52.99
Earn 5,000 points ($10 back in savings) when you spend $60+ on dog food.
Save 40% on your first Autoship order!
+ 3 more
Wellness® Signature Selects Adult Cat Wet Food - Grain Free, Flaked, 2.8 Oz
1 size 2 flavors
(496)
$2.49
$2.59
Save 40% on your first Autoship order!
Earn a 5,000-point Reward Certificate when you get your second Autoship delivery by 11/30
+ 2 more
Wellness® Complete Health Adult Cat Wet Food - Seafood Pate, Variety Pack
2 sizes
(112)
$20.99 - $41.79
Buy 1, Get the 2nd 40% Off select Cat Food Variety Packs!
Save 40% on your first Autoship order!
+ 3 more
Wellness® Complete Health Wet Adult Cat Food - Chicken & Turkey Lovers, Pate, Variety Pack
2 sizes
(379)
$20.89 - $41.79
Buy 1, Get the 2nd 40% Off select Cat Food Variety Packs!
Save 40% on your first Autoship order!
+ 3 more
Wellness® Complete Health Kitten Wet Food - Pate Favorites, Variety Pack, 12 CT, 36 OZ
(229)
$20.89
Buy 1, Get the 2nd 40% Off select Cat Food Variety Packs!
Save 40% on your first Autoship order!
+ 3 more
Wellness® Complete Health Adult Cat Wet Food - Natural, Grain Free, Pate, 5.5 Oz
1 size 6 flavors
(5230)
$2.83 - $2.89
Save 40% on your first Autoship order!
Earn a 5,000-point Reward Certificate when you get your second Autoship delivery by 11/30
+ 2 more
Wellness® Complete Health Indoor Adult Cat Food - Natural, Grain Free, Salmon & Herring Meal
2 sizes 1 flavor
(673)
$22.79 - $35.19
Save 40% on your first Autoship order!
Earn a 5,000-point Reward Certificate when you get your second Autoship delivery by 11/30
+ 3 more
Wellness® Signature Selects Adult Cat Wet Food - Grain Free, Shredded, 5.3 Oz
1 size 3 flavors
(236)
$3.59 - $3.69
Save 40% on your first Autoship order!
Earn a 5,000-point Reward Certificate when you get your second Autoship delivery by 11/30
+ 2 more
Wellness Bowl Boosters Simply Shreds Wet Adult Dog Food Toppers - 2.8 Oz., 12 Count, Variety Pack
(254)
$19.99
$21.99
Earn 5,000 points ($10 back in savings) when you spend $60+ on dog food.
Save 40% on your first Autoship order!
+ 2 more
Wellness® Signature Selects Adult Cat Wet Food - Grain Free, Flaked, 5.3 Oz
1 size 2 flavors
(324)
$3.59
$3.69
Save 40% on your first Autoship order!
Earn a 5,000-point Reward Certificate when you get your second Autoship delivery by 11/30
+ 2 more
Wellness® CORE® Adult Cat Wet Food - Natural, Grain Free, Pate, 5.5 Oz
1 size 3 flavors
(1034)
$3.39 - $3.49
Save 40% on your first Autoship order!
Earn a 5,000-point Reward Certificate when you get your second Autoship delivery by 11/30
+ 2 more
Wellness® Complete Health Indoor Adult Cat Food - Natural, Grain Free, Chicken & Chicken Meal
2 sizes
(589)
$22.79 - $35.19
Save 40% on your first Autoship order!
Earn a 5,000-point Reward Certificate when you get your second Autoship delivery by 11/30
+ 3 more
Wellness® CORE® Tiny Tasters Adult Cat Wet Food - Natural, Pate, Land Variety Pack, 12 CT, 21 OZ
(146)
$15.19
$15.99
Buy 1, Get the 2nd 40% Off select Cat Food Variety Packs!
Save 40% on your first Autoship order!
+ 3 more
Wellness® CORE® Mini Meals Small Breed Shredded All Life Stage Wet Dog Food - Variety Pack
(86)
$19.99
$21.99
Earn 5,000 points ($10 back in savings) when you spend $60+ on dog food.
Save 40% on your first Autoship order!
+ 2 more
Wellness® Healthy Indulgence Adult Cat Wet Food - Grain Free, Natural, Gravies, 3 Oz
1 size 2 flavors
(117)
$1.99
Save 40% on your first Autoship order!
Earn a 5,000-point Reward Certificate when you get your second Autoship delivery by 11/30
+ 2 more
Wellness® Healthy Indulgence Adult Cat Wet Food - Grain Free, Natural, Morsels, 3 Oz
1 size 5 flavors
(194)
$1.99
Save 40% on your first Autoship order!
Earn a 5,000-point Reward Certificate when you get your second Autoship delivery by 11/30
+ 2 more
Wellness® CORE® Tiny Tasters Adult Cat Wet Food - Natural, Pate, Sea Variety Pack, 12 CT, 21 OZ
(110)
$15.19
$15.99
Buy 1, Get the 2nd 40% Off select Cat Food Variety Packs!
Save 40% on your first Autoship order!
+ 3 more
Wellness® Complete Health Adult Cat Wet Food - Natural, Grain Free, Pate, 3 Oz
1 size 7 flavors
(4753)
$1.82 - $1.89
Save 40% on your first Autoship order!
Earn a 5,000-point Reward Certificate when you get your second Autoship delivery by 11/30
+ 2 more
Wellness® Stews All Life Stage Wet Dog Food - Natural
1 size 6 flavors
(742)
$4.09
Earn 5,000 points ($10 back in savings) when you spend $60+ on dog food.
Buy 8 Wellness Dog Food 12.5-13oz Cans for Only $28
+ 3 more
Wellness® CORE® Tiny Tasters Adult Cat Wet Food - Grain Free, Flaked, 1.75 Oz
1 size 2 flavors
(620)
$1.49
Save 40% on your first Autoship order!
Earn a 5,000-point Reward Certificate when you get your second Autoship delivery by 11/30
+ 2 more
Wellness® Healthy Indulgence Adult Cat Wet Food - Grain Free, Morsels, Variety Pack, 8 Ct, 24 Oz
(68)
$14.99
Buy 1, Get the 2nd 40% Off select Cat Food Variety Packs!
Save 40% on your first Autoship order!
+ 3 more
Wellness® Complete Health Kitten Wet Food - Natural, Grain Free, Pate, 3 Oz
1 size 2 flavors
(566)
$1.82
$1.89
Save 40% on your first Autoship order!
Earn a 5,000-point Reward Certificate when you get your second Autoship delivery by 11/30
+ 2 more
Wellness Soft Puppy Bites Dog Treats - Natural, Lamb & Salmon
(514)
$9.99
Save 40% on your first Autoship order!
Earn a 5,000-point Reward Certificate when you get your second Autoship delivery by 11/30
+ 3 more
Wellness® CORE® Tiny Tasters Adult Cat Wet Food - Grain Free, Pate, Single Serve, 1.75 Oz
1 size 6 flavors
(1557)
$1.40 - $1.49
Save 40% on your first Autoship order!
Earn a 5,000-point Reward Certificate when you get your second Autoship delivery by 11/30
+ 2 more
Wellness® Bowl Boosters Simply Shreds All Life Stage Dog Food Topper - Grain Free, Chicken & Beef
(475)
$1.99
Earn 5,000 points ($10 back in savings) when you spend $60+ on dog food.
Save 40% on your first Autoship order!
+ 3 more
Wellness® Appetizing Entrees Adult Cat Wet Food - Grain Free, Mousse, 1.4 Oz
1 size 2 flavors
(758)
$1.19
Save 40% on your first Autoship order!
Earn a 5,000-point Reward Certificate when you get your second Autoship delivery by 11/30
+ 2 more
Wellness® CORE® Bowl Boosters All Life Stage Dog Food Topper - Digestive Health, Chicken
(267)
$8.99
$9.99
Earn 5,000 points ($10 back in savings) when you spend $60+ on dog food.
Save 40% on your first Autoship order!
+ 3 more
Wellness® Bowl Boosters Simply Shreds All Life Stage Dog Food Topper - Grain Free, Chicken & Liver
(727)
$1.99
Earn 5,000 points ($10 back in savings) when you spend $60+ on dog food.
Save 40% on your first Autoship order!
+ 3 more
Wellness® Soft Puppy Bites Puppy Treats - Natural, Grain Free, Lamb & Salmon
(575)
$4.99
$5.49
Save 40% on your first Autoship order!
Earn a 5,000-point Reward Certificate when you get your second Autoship delivery by 11/30
+ 3 more
Wellness® CORE+ Kibble + Freeze-Dried Pieces Adult Dry Dog Food - Grain Free, Turkey
3 sizes 1 flavor
(1759)
$23.99 - $81.99
Earn 5,000 points ($10 back in savings) when you spend $60+ on dog food.
Save 40% on your first Autoship order!
+ 3 more
Wellness® CORE® Large Breed Adult Dry Dog Food - Natural, Grain Free
(154)
$77.99
$79.99
Earn 5,000 points ($10 back in savings) when you spend $60+ on dog food.
Save 40% on your first Autoship order!
+ 3 more
Wellness(r) CORE(r) Digestive Health Adult Dry Dog Food - With-Grain, Whitefish & Brown Rice
2 sizes 1 flavor
(236)
$20.99 - $77.99
Earn 5,000 points ($10 back in savings) when you spend $60+ on dog food.
Save 40% on your first Autoship order!
+ 3 more
Wellness Core Digestive Health Adult Dry Dog Food - With-Grain, Chicken & Brown Rice
2 sizes 1 flavor
(249)
$20.99 - $77.99
Earn 5,000 points ($10 back in savings) when you spend $60+ on dog food.
Save 40% on your first Autoship order!
+ 3 more
  1. 1
  2. 2
  3. 3
  4. 4
  5. 5

Explore Our Extensive Range of Fish Supplies 

At PetSmart, we offer a comprehensive selection of supplies for both freshwater and marine fish enthusiasts. Whether you're setting up a new aquarium or maintaining an existing one, our range of products ensures your aquatic pets thrive. From aquarium decor to essential maintenance tools, find everything you need to create a vibrant underwater world. 

Freshwater and Marine Fish Supplies 

Our collection includes a variety of aquarium accessories and pet fish supplies designed to cater to the unique needs of both freshwater and marine environments. Explore our selection of aquarium decor to enhance the beauty of your tank, and discover top-quality marine aquarium supplies to support the health of your aquatic life. 

Essential Aquarium Maintenance 

Maintaining a healthy aquarium requires the right tools and knowledge. Our range of aquarium maintenance products includes everything from filters to water conditioners, ensuring your tank remains a safe and clean environment for your fish. Learn how to maintain pH levels and keep your aquarium filter running efficiently with our expert tips. 

Frequently Asked Questions (FAQs) 

What maintenance does a fish tank need? 
Regular maintenance is crucial for a healthy aquarium. This includes cleaning the tank, changing the water, and checking the filter and pH levels. 
Can I put tap water in my fish tank? 
Tap water can be used in your fish tank, but it should be treated with a water conditioner to remove harmful chemicals like chlorine. 
Should an aquarium filter be on all the time? 
Yes, an aquarium filter should run continuously to maintain water quality and provide a healthy environment for your fish. 
How to maintain pH level in an aquarium? 
To maintain the pH level in your aquarium, regularly test the water and use pH adjusters as needed. Consistent water changes also help stabilize pH levels.