Disease Treatment

(184 results)
Royal Canin® Breed Health Nutrition® Golden Retriever Breed Specific Adult Dog Dry Food - 30 lb
(641)
$99.99
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Royal Canin® Feline Health Nutrition Indoor Adult Dry Cat Food
3 sizes
(1960)
$23.99 - $67.99
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Royal Canin Size Health Nutrition X-Small Adult Dry Dog Food
(1010)
$59.99
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Royal Canin® Breed Health Nutrition® Labrador Retriever Breed Specific Adult Dog Dry Food - 30 lb
(930)
$99.99
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Royal Canin® Breed Health Nutrition® German Shepherd Breed Specific Adult Dog Dry Food
2 sizes
(988)
$79.99 - $99.99
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Royal Canin Size Health Nutrition Medium Breed Adult Dry Dog Food
3 sizes 1 flavor
(670)
$61.99 - $109.99
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Royal Canin® Breed Health Nutrition® Yorkshire Terrier Breed Specific Adult Dog Dry Food
2 sizes 1 flavor
(1376)
$24.99 - $61.99
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Royal Canin® Breed Health Nutrition® Shih Tzu Breed Specific Adult Dog Dry Food
2 sizes
(950)
$24.99 - $61.99
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Royal Canin® Breed Health Nutrition® Poodle Breed Specific Adult Dog Dry Food
(475)
$61.99
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Royal Canin® Feline Health Nutrition Adult Instinctive Wet Cat Food - Thin Slices in Gravy, 3oz
(393)
$2.19
$2.29
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Royal Canin Canine Health Nutrition Adult Dog Wet Food - 13.5 oz
(322)
$3.89
$4.09
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Royal Canin® Feline Health Nutrition Instinctive Adult Loaf in Sauce Wet Cat Food - 3 Oz
(304)
$2.19
$2.29
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Royal Canin® Feline Health Nutrition Indoor Adult Wet Cat Food - 3 oz
(86)
$2.19
$2.29
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Royal Canin Size Health Nutrition Large Breed Adult Dry Dog Food
3 sizes
(406)
$61.99 - $109.99
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Royal Canin® Breed Health Nutrition® Bulldog Breed Specific Adult Dog Dry Food
2 sizes 1 flavor
(736)
$79.99 - $99.99
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Royal Canin® Feline Care Nutrition Urinary Care Adult Dry Cat Food
2 sizes 1 flavor
(1480)
$28.99 - $79.99
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Royal Canin® Weight Care Adult Dry Cat Food
3 sizes 1 flavor
(630)
$28.99 - $79.99
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Royal Canin® Breed Health Nutrition® French Bulldog Adult Dog Dry Food
2 sizes
(700)
$79.99 - $99.99
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Royal Canin Size Health Nutrition Large Breed Aging 8+ Senior Dog Dry Food - 30 lb
(149)
$109.99
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Royal Canin® Breed Health Nutrition® Dachshund Breed Specific Adult Dog Dry Food
(509)
$61.99
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Royal Canin® Breed Health Nutrition® Miniature Schnauzer Breed Specific Adult Dog Dry Food - 10 lb
(494)
$61.99
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Royal Canin® Breed Health Nutrition® Boxer Breed Specific Adult Dog Dry Food
2 sizes
(443)
$79.99 - $99.99
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Royal Canin® Feline Health Nutrition Kitten Dry Cat Food
4 sizes 1 flavor
(1994)
$25.99 - $73.99
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Royal Canin Size Health Nutrition Giant Breed Adult Dog Dry Food - 30 lb
(148)
$99.99
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Royal Canin Size Health Nutrition Large Breed Puppy Dog Dry Food
2 sizes 1 flavor
(499)
$73.99 - $109.99
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Royal Canin® Breed Health Nutrition® Chihuahua Breed Specific Adult Dog Dry Food
2 sizes
(1073)
$24.99 - $61.99
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Royal Canin® Feline Care Nutrition Indoor Hairball Care Adult Dry Cat Food
(396)
$79.99
$83.99
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Royal Canin® Breed Health Nutrition Rottweiler Breed Specific Adult Dog Dry Food - 30 lb
(107)
$99.99
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Royal Canin® Canine Care Nutrition Digestive Care Large Breed Adult Dog Dry Food - 30 lb
(91)
$109.99
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Royal Canin Size Health Nutrition Small Breed Adult Dry Dog Food
2 sizes 1 flavor
(1126)
$19.99 - $99.99
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Royal Canin® Feline Health Nutrition Digestive Care Dry Cat Food
2 sizes 1 flavor
(729)
$28.99 - $42.99
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Royal Canin Size Health Nutrition Small Breed Puppy Dog Dry Food
3 sizes 1 flavor
(1412)
$23.99 - $109.99
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Royal Canin Multi Function Urinary + Hydrolyzed Protein Adult Dry Dog Food
(93)
$112.99
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+ 2 more
Royal Canin® Canine Care Nutrition Weight Care Large Breed Adult Dog Dry Food - 30 lb
(73)
$109.99
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Royal Canin Size Health Nutrition Medium Breed Puppy Dog Dry Food
2 sizes
(629)
$31.99 - $109.99
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Royal Canin® Breed Health Nutrition® Golden Retriever Breed Specific Puppy Dog Dry Food - 30 lb
(348)
$104.99
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Royal Canin® Breed Health Nutrition® Pug Breed Specific Adult Dog Dry Food - 10 lb
(277)
$61.99
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Royal Canin Size Health Nutrition Giant Breed Junior Puppy Dog Dry Food - 30 lb
(164)
$109.99
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Royal Canin® Feline Health Nutrition Sensitive Digestion Adult Dry Cat Food
2 sizes 1 flavor
(733)
$36.99 - $67.99
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Royal Canin® Feline Breed Nutrition Maine Coon Adult Dry Cat Food
(448)
$45.99
$48.99
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It’s never fun when a pet gets sick or starts to struggle with their health. Fish parents whose aquatic friend is dealing with diseases like ich or white spots need the right supplies to help their pet get back on the right track. Pet parents can find the fish disease treatment they need to care for their fish at PetSmart. We offer a huge selection of fish disease treatments for the most common issues. 
Our collection of fish disease treatments includes aquarium supplies like: 
Fish Ich Treatment
Bacterial Infection Treatment
General Cure Treatments
Fin/Body Cure Powder
And More
You are bound to find what you need to care for your fish at PetSmart. Looking for something else while you’re here? PetSmart carries other fish supplies for your aquatic friend. We sell products like fish foodfish feedersfish tank plant carefish pond caresaltwater aquarium carefish water care/conditioningfish tank water quality testers, and more. 
PetSmart also offers convenient shopping with curbside or in-store pickup. Need something today? We have select items available for same-day delivery in most areas powered by DoorDash. For items you purchase frequently, PetSmart has Autoship that automatically delivers the items you want to your door as often as you’d like. Check the website to see what items are eligible.