Aquarium Water Test Kits & Strips

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1 - 36 of 59 Results

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API Freshwater Aquarium Master Test Kit, 800 count
Rated 4.5839 out of 5 stars
137Reviews
$24.59Chewy Price
$34.99List Price
$23.36Autoship Price

FREE 1-3 day shipping over $49

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

More Choices Available

Rated 3.9167 out of 5 stars
36Reviews
$10.59Chewy Price
$14.99List Price
$10.06Autoship Price

FREE 1-3 day shipping over $49

Tetra EasyStrips 6-in-1 Freshwater & Saltwater Aquarium Test Strips, 100 count

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Rated 4.4565 out of 5 stars
46Reviews
$21.91Chewy Price
$37.49List Price
$20.81Autoship Price

FREE 1-3 day shipping over $49

API Saltwater Aquarium Master Test Kit, 550 count
Rated 4.5 out of 5 stars
16Reviews
$19.67Chewy Price
$34.99List Price
$18.69Autoship Price

FREE 1-3 day shipping over $49

API GH & KH General & Carbonate Hardness Freshwater Aquarium Test Kit
Rated 4.7 out of 5 stars
20Reviews
$9.99Chewy Price
$13.99List Price
$9.49Autoship Price

FREE 1-3 day shipping over $49

Instant Ocean Testing Hydrometer for Aquariums, 1 count
Rated 3.2222 out of 5 stars
9Reviews
$7.59Chewy Price
$11.99List Price
$7.21Autoship Price

FREE 1-3 day shipping over $49

API pH Freshwater Aquarium Test Kit, 250 count
Rated 4.3889 out of 5 stars
18Reviews
$4.49Chewy Price
$9.19List Price
$4.27Autoship Price

FREE 1-3 day shipping over $49

API Ammonia Freshwater & Saltwater Aquarium Test Kit, 130 count
Rated 4.8182 out of 5 stars
11Reviews
$12.00Chewy Price
$18.00List Price
$11.40Autoship Price

FREE 1-3 day shipping over $49

Tetra EasyStrips Ammonia Freshwater & Saltwater Aquarium Test Strips, 25 count

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Rated 4.875 out of 5 stars
8Reviews
$5.99Chewy Price
$14.19List Price
$5.69Autoship Price

FREE 1-3 day shipping over $49

API Nitrate NO3 Freshwater & Saltwater Aquarium Test Kit, 90 count
Rated 4.6667 out of 5 stars
6Reviews
$8.99Chewy Price
$16.00List Price
$8.54Autoship Price

FREE 1-3 day shipping over $49

API Ammonia NH3/NH4 Freshwater & Saltwater Aquarium Test Strips, 25 count
Rated 3.6667 out of 5 stars
3Reviews
$9.20Chewy Price
$19.99List Price
$8.74Autoship Price

FREE 1-3 day shipping over $49

API Reef Aquarium Master Test Kit, 1 count
Rated 4.6667 out of 5 stars
12Reviews
$26.99Chewy Price
$37.99List Price
$25.64Autoship Price

FREE 1-3 day shipping over $49

API Phosphate PO4 Freshwater & Saltwater Aquarium Test Kit, 150 count
Rated 4.375 out of 5 stars
8Reviews
$10.99Chewy Price
$17.19List Price
$10.44Autoship Price

FREE 1-3 day shipping over $49

Tetra EasyStrips Complete Freshwater & Saltwater Aquarium Test Strips, 25 count
Rated 4 out of 5 stars
9Reviews
$12.99Chewy Price
$26.39List Price
$12.34Autoship Price

FREE 1-3 day shipping over $49

API Pond Master Test Kit, 500 count
Rated 4.5714 out of 5 stars
14Reviews
$32.79Chewy Price
$34.99List Price
$31.15Autoship Price

FREE 1-3 day shipping over $49

API pH Freshwater Aquarium Test & Adjuster Kit, 250 count
Rated 3.8571 out of 5 stars
7Reviews
$10.99Chewy Price
$15.39List Price
$10.44Autoship Price

FREE 1-3 day shipping over $49

API Replacement Test Tubes for Aquarium Liquid Test Kits, 24 count
Rated 4.5 out of 5 stars
8Reviews
$23.99Chewy Price
$31.99List Price
$22.79Autoship Price

FREE 1-3 day shipping over $49

Tetra EasyStrips 6-in-1 Aquarium Test Strips, 4 count
Rated 1 out of 5 stars
2Reviews
$3.60Chewy Price
$7.09List Price
$3.42Autoship Price

FREE 1-3 day shipping over $49

API Nitrite NO2 Fresh & Salt Water Aquarium Test Kit, 180-count
Rated 5 out of 5 stars
1Review
$6.99Chewy Price
$13.99List Price
$6.64Autoship Price

FREE 1-3 day shipping over $49

API Copper Cu+ Freshwater & Saltwater Aquarium Test Kit, 90 count
Rated 5 out of 5 stars
2Reviews
$11.46Chewy Price
$13.99List Price
$10.89Autoship Price

FREE 1-3 day shipping over $49

API High Range pH Fresh & Salt Water Aquarium Test Kit, 160-count
$7.59Chewy Price
$10.59List Price
$7.21Autoship Price

FREE 1-3 day shipping over $49

API Calcium Saltwater Aquarium Test Kit, 1 count
Rated 5 out of 5 stars
4Reviews
$9.12Chewy Price
$14.99List Price
$8.66Autoship Price

FREE 1-3 day shipping over $49

API Aquarium Water Conditioner & Tropical Fish Food Kit
deal
Rated 5 out of 5 stars
3Reviews
$35.17Chewy Price
$39.59List Price
$33.41Autoship Price

Save 50% at Checkout

FREE 1-3 day shipping over $49

API KH Carbonate Hardness Fresh & Salt Water Aquarium Test Kit
deal
$8.54Chewy Price
$8.99List Price
$8.11Autoship Price

Save 50% at Checkout

FREE 1-3 day shipping over $49

API pH Freshwater & Saltwater Aquarium Test Strips, 25 count
Rated 5 out of 5 stars
1Review
$13.99Chewy Price
$13.29Autoship Price

FREE 1-3 day shipping over $49

API Pond Wide Range pH Test Kit 160-Test Pond Water Test Kit, 1-count
Rated 3.5 out of 5 stars
2Reviews
$5.99Chewy Price
$9.99List Price

FREE 1-3 day shipping over $49

API Pond 5-IN-1 Test Strips, 25 count
Rated 4.3333 out of 5 stars
6Reviews
$13.99Chewy Price
$15.99List Price

FREE 1-3 day shipping over $49

Nyos Magnesium Reefer Aquarium Test Kit
$19.99Chewy Price

FREE 1-3 day shipping over $49

Salifert Aquarium Ammonia Test Kit
new
$13.75Chewy Price
$13.99List Price
$13.06Autoship Price

FREE 1-3 day shipping over $49

Nyos Nitrate Reefer Aquarium Test Kit
$24.99Chewy Price

FREE 1-3 day shipping over $49

Salifert Aquarium Carbonate Hardness/Alkalinity Test Kit
new
$13.00Chewy Price
$16.46List Price
$12.35Autoship Price

FREE 1-3 day shipping over $49

Salifert Aquarium Nitrate Test Kit
new
$15.70Chewy Price
$17.37List Price
$14.92Autoship Price

FREE 1-3 day shipping over $49

API Marine Saltwater Master Test Aquarium Kit
Rated 3.5 out of 5 stars
2Reviews
$44.79Chewy Price
$50.59List Price
$42.55Autoship Price

FREE 1-3 day shipping over $49

Salifert Aquarium pH Test Kit
new
$10.92Chewy Price
$10.37Autoship Price

FREE 1-3 day shipping over $49

Salifert Aquarium Nitrite Test Kit
new
$11.86Chewy Price
$11.27Autoship Price

FREE 1-3 day shipping over $49

Aquarium Water Test Kits & Strips

Regular water testing is essential in order to keep your fish healthy and thriving. By checking the ammonia, pH, nitrite and nitrate levels in your fish aquarium, you can ensure that the water condition is always ideal. It's especially crucial to check these levels during water changes and when setting up a new tank. You can do this easily with one of our aquarium test kits from top brands like API and Tetra. Get professional results with API Freshwater Aquarium Master Test Kit. This aquarium water test kit measures and repairs the aquarium levels that are necessary to the health of your freshwater tank. Fish require balanced levels of ammonia, pH, high-range pH, nitrate and nitrite in order to stay healthy and thrive. These levels can change pretty quickly as fish waste and uneaten food or other organic matter builds up or when untreated tap water is added to the tank. This fish tank test kit comes with everything you need to stay on top of aquarium levels. It tests tap and aquarium water and protects fish from toxic water conditions. And it comes with a calibrated color card that you can hold up next to the water tubes to compare your results. If you have a saltwater aquarium, you should opt for a saltwater test kit like the API Saltwater Aquarium Master Test Kit. It comes with everything you need to accurately measure the four saltwater parameters in your tank, including six bottles of liquid test reagent, four glass test tubes with snap-tight caps, and a holding tray. There's also a step-by-step instruction booklet with information to walk you through the process. You could also try Tetra Easy Strips 6-in-1 Freshwater & Saltwater Aquarium Test Strips. These convenient strips work for fresh or saltwater aquariums. All you have to do is dip and read the results, then treat the water accordingly. Proper maintenance, upkeep and regular testing will help keep your aquarium water in tip-top condition. And a freshwater test kit makes it super easy to keep your water clean. Shop for fish food, fish tank filters, fish tank décor and any other fish products you may need here at Chewy's online pet store!

Related Categories: Fish Algaecides and Water Clarity, Fish pH Treatments, Aquarium Plant Care, Fish Salt and Minerals, Fish Water Conditioners, Fish Water Care