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API Stress Coat Aquarium Water Conditioner, 16-oz bottle

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Rated 4.8595 out of 5 stars
121
$5.56Chewy Price
$13.49List Price
$5.28Autoship Price

FREE 1-3 day shipping over $49

API Tap Water Conditioner, 16-oz bottle

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Rated 4.875 out of 5 stars
56
$5.83Chewy Price
$10.29List Price
$5.54Autoship Price

FREE 1-3 day shipping over $49

API Freshwater Aquarium Master Test Kit, 800 count
Rated 4.5899 out of 5 stars
139
$26.74Chewy Price
$47.39List Price
$25.40Autoship Price

FREE 1-3 day shipping over $49

API Stress Zyme Freshwater & Saltwater Aquarium Water Cleaner, 16-oz bottle

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Rated 4.8723 out of 5 stars
47
$8.08Chewy Price
$20.99List Price
$7.68Autoship Price

FREE 1-3 day shipping over $49

API Turtle Sludge Destroyer Aquarium Cleaner, 8-oz bottle

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Rated 4.0408 out of 5 stars
49
$7.79Chewy Price
$10.99List Price
$7.40Autoship Price

FREE 1-3 day shipping over $49

API Quick Start Freshwater & Saltwater Aquarium Water Treatment, 16-oz bottle

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Rated 4.2593 out of 5 stars
27
$9.26Chewy Price
$22.39List Price
$8.80Autoship Price

FREE 1-3 day shipping over $49

API Accu-Clear Freshwater Aquarium Clarifier, 8-oz bottle

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Rated 4.2115 out of 5 stars
52
$8.59Chewy Price
$12.09List Price
$8.16Autoship Price

FREE 1-3 day shipping over $49

API Algaefix Algae Control Aquarium Solution, 16-oz bottle

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Rated 4.05 out of 5 stars
60
$10.75Chewy Price
$21.89List Price
$10.21Autoship Price

FREE 1-3 day shipping over $49

API Freshwater Aquarium Salt, 65-oz carton

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Rated 4.8519 out of 5 stars
54
$10.99Chewy Price
$15.39List Price
$10.44Autoship Price

FREE 1-3 day shipping over $49

API Melafix Freshwater Fish Infection Remedy, 16-oz bottle

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Rated 4.4545 out of 5 stars
55
$12.82Chewy Price
$18.19List Price
$12.18Autoship Price

FREE 1-3 day shipping over $49

API E.M. Erythromycin Freshwater Fish Bacterial Disease Medication, 10 count
deal

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Rated 4.3684 out of 5 stars
38
$16.29Chewy Price
$22.89List Price
$15.48Autoship Price

Buy 1 Get 1 50% Off

FREE 1-3 day shipping over $49

API Pond Algaefix Algae Control Solution, 1-gal bottle

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Rated 4.3889 out of 5 stars
90
$63.99Chewy Price
$89.59List Price
$60.79Autoship Price

FREE 1-3 day shipping on this item

API Turtle Water Conditioner, 8-oz bottle

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Rated 4.6667 out of 5 stars
15
$7.79Chewy Price
$10.99List Price
$7.40Autoship Price

FREE 1-3 day shipping over $49

API 5 in 1 Freshwater & Saltwater Aquarium Test Strips, 25 count

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Rated 3.9459 out of 5 stars
37
$9.43Chewy Price
$16.59List Price
$8.96Autoship Price

FREE 1-3 day shipping over $49

API Extra Long Algae Scraper for Glass Aquariums
Rated 4.6757 out of 5 stars
37
$7.99Chewy Price
$11.69List Price

FREE 1-3 day shipping over $49

API Algae Eater Wafers Fish Food, 1.3-oz bottle

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Rated 4.7241 out of 5 stars
29
$4.69Chewy Price
$4.46Autoship Price

FREE 1-3 day shipping over $49

API Turtle Fix Antibacterial Treatment, 8-oz bottle

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Rated 4.5 out of 5 stars
18
$7.59Chewy Price
$10.69List Price
$7.21Autoship Price

FREE 1-3 day shipping over $49

API Bettafix Antibacterial & Antifungal Betta Fish Infection Remedy, 1.7-oz bottle
deal
Rated 4.1765 out of 5 stars
51
$4.29Chewy Price
$6.09List Price
$4.08Autoship Price

Buy 1 Get 1 50% Off

FREE 1-3 day shipping over $49

API Leaf Zone Freshwater Aquarium Plant Fertilizer, 16-oz bottle

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Rated 4.6429 out of 5 stars
14
$10.99Chewy Price
$15.39List Price
$10.44Autoship Price

FREE 1-3 day shipping over $49

API General Cure Freshwater & Saltwater Aquarium Parasitic Fish Disease Treatment, 10 count

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Rated 4.2273 out of 5 stars
22
$12.16Chewy Price
$20.49List Price
$11.55Autoship Price

FREE 1-3 day shipping over $49

API Pond-Zyme Sludge Destroyer Pond Sludge Remover, 16-oz bottle

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Rated 4.1875 out of 5 stars
16
$29.59Chewy Price
$41.49List Price
$28.11Autoship Price

FREE 1-3 day shipping over $49

API Fin & Body Cure Freshwater Fish Powder Medication
Rated 4.8 out of 5 stars
10
$11.49Chewy Price
$20.49List Price
$10.92Autoship Price

FREE 1-3 day shipping over $49

API Ammo-Lock Freshwater & Saltwater Aquarium Ammonia Detoxifier, 16-oz bottle

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Rated 3.4615 out of 5 stars
13
$8.81Chewy Price
$16.29List Price
$8.37Autoship Price

FREE 1-3 day shipping over $49

API Root Tabs Aquarium Plant Fertilizer, 10 count

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Rated 3.375 out of 5 stars
8
$9.29Chewy Price
$13.09List Price
$8.83Autoship Price

FREE 1-3 day shipping over $49

API Melafix Freshwater Fish Infection Remedy + Stress Coat Aquarium Water Conditioner
Rated 5 out of 5 stars
1
$17.46Chewy Price
$18.38List Price
$16.59Autoship Price

FREE 1-3 day shipping over $49

API Nitra-Zorb Aquarium Canister Filter Filtration Pouch, Size 6

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Rated 4.3684 out of 5 stars
19
$15.78Chewy Price
$22.19List Price
$14.99Autoship Price

FREE 1-3 day shipping over $49

API Liquid Super Ick Cure Freshwater Aquarium Fish Medication, 4-oz bottle

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Rated 4.5556 out of 5 stars
18
$6.59Chewy Price
$9.29List Price
$6.26Autoship Price

FREE 1-3 day shipping over $49

API Pimafix Freshwater & Saltwater Fish Fungal Infection Remedy, 16-oz bottle

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Rated 4.619 out of 5 stars
21
$15.19Chewy Price
$14.43Autoship Price

FREE 1-3 day shipping over $49

API Pond Ecofix Sludge Destroyer Pond Water Clarifier & Sludge Remover, 16-oz bottle

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Rated 4.1111 out of 5 stars
9
$10.99Chewy Price
$22.19List Price
$10.44Autoship Price

FREE 1-3 day shipping over $49

API Pond Simply Clear Pond Water Clarifier, 32-oz bottle

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Rated 4.5 out of 5 stars
18
$27.55Chewy Price
$38.29List Price
$26.17Autoship Price

FREE 1-3 day shipping over $49

API Pond Stress Coat Water Conditioner, 1-gal bottle

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Rated 5 out of 5 stars
20
$67.99Chewy Price
$95.19List Price
$64.59Autoship Price

FREE 1-3 day shipping on this item

API Safe & Easy Aquarium Cleaner Spray, 8-oz bottle
Rated 2.7143 out of 5 stars
7
$9.76Chewy Price
$9.78List Price
$9.27Autoship Price

FREE 1-3 day shipping over $49

API Proper pH 7.0 Aquarium Water Treatment, 8.8-oz bottle

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Rated 3.4375 out of 5 stars
16
$9.00Chewy Price
$14.49List Price
$8.55Autoship Price

FREE 1-3 day shipping over $49

API pH Up Freshwater Aquarium Water Treatment, 16-oz bottle

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Rated 4.7143 out of 5 stars
7
$14.65Chewy Price
$18.19List Price
$13.92Autoship Price

FREE 1-3 day shipping over $49

API Marine ALGAEFIX Algae Control 16-oz bottle
Rated 4.2 out of 5 stars
5
$8.70Chewy Price
$25.19List Price
$8.26Autoship Price

FREE 1-3 day shipping over $49

API GH & KH General & Carbonate Hardness Freshwater Aquarium Test Kit
Rated 4.7273 out of 5 stars
22
$10.99Chewy Price
$15.39List Price
$10.44Autoship Price

FREE 1-3 day shipping over $49

API

API is passionate about fishkeeping and supporting the fishkeeping hobby. A pioneer in the aquatics industry for more than 50 years, API is committed to making a difference to our planet and its people by providing innovative, scientifically proven fishkeeping solutions.