• $0 - $50+


Disease Treatment

(17 results)
API® E.M. Erythromycin Fish Bacterial Infection Treatment
(74)
$17.89
$26.49
15% off $50+ with Free Same-Day Delivery
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+ 2 more
API® Guide Fish Problem Solving General Cure
(60)
$16.39
$23.49
15% off $50+ with Free Same-Day Delivery
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+ 2 more
API® Melafix Fish Bacterial Infection Treatment
(190)
$14.39
$16.99
15% off $50+ with Free Same-Day Delivery
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+ 2 more
API® FIN & BODY CURE POWDER
(62)
$16.39
$17.99
15% off $50+ with Free Same-Day Delivery
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+ 2 more
API® Liquid Super Ick Cure
(149)
$6.99
15% off $50+ with Free Same-Day Delivery
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+ 2 more
API® Bettafix Freshwater Fish Bacterial Infection Treatment
(128)
$4.99
15% off $50+ with Free Same-Day Delivery
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+ 2 more
Fritz Maracyn Oxy
(14)
$10.39
$14.99
15% off $50+ with Free Same-Day Delivery
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+ 2 more
Kordon® Methylene Blue
(0)
$84.49
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Tetra® Aquarium Lifeguard Halo Shield All-In-One-Treatment
(135)
$6.09
$16.49
15% off $50+ with Free Same-Day Delivery
Save 35% On Your First Autoship Order!
+ 2 more
API® Pimafix Fish Fungal Infection Treatment
2 sizes
(94)
$9.09 - $12.09
15% off $50+ with Free Same-Day Delivery
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+ 2 more
Fritz Copper Safe
(0)
$10.39
$10.79
15% off $50+ with Free Same-Day Delivery
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+ 2 more
Top Fin® Ick Remedy
(49)
$11.99
15% off $50+ with Free Same-Day Delivery
Buy One Get the 2nd 25% Off Top Fin Food & Watercare Excluding Pond
+ 3 more
Kordon® Rid Ich Plus Treatment
(0)
$10.59
$12.49
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Kordon® Ich Attack® Treatment
(0)
$14.99
$15.99
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Kordon® Rid Fungus
(0)
$12.49
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Kordon® Rid Ich Plus Treatment
(0)
$32.99
$51.39
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Kordon® Prevent Ich
(0)
$7.59
$9.19
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  1. 1
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.