Aquarium Water Test Kits & Strips

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

More Choices Available

Rated 3.9459 out of 5 stars
37
$9.43Chewy Price
$16.59List Price
$8.96Autoship 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 4.3542 out of 5 stars
48
$24.18Chewy Price
$37.49List Price
$22.97Autoship 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 Ammonia Freshwater & Saltwater Aquarium Test Kit, 130 count
Rated 4.8462 out of 5 stars
13
$14.29Chewy Price
$20.09List Price
$13.58Autoship Price

FREE 1-3 day shipping over $49

Instant Ocean Testing Hydrometer for Aquariums, 1 count
Rated 3.4 out of 5 stars
10
$8.70Chewy Price
$11.99List Price
$8.26Autoship Price

FREE 1-3 day shipping over $49

API Saltwater Aquarium Master Test Kit, 550 count
Rated 4.5 out of 5 stars
16
$26.96Chewy Price
$47.39List Price
$25.61Autoship Price

FREE 1-3 day shipping over $49

API pH Freshwater Aquarium Test Kit, 250 count
Rated 4.3889 out of 5 stars
18
$5.21Chewy Price
$10.29List Price
$4.95Autoship 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
3
$9.20Chewy Price
$22.19List Price
$8.74Autoship Price

FREE 1-3 day shipping over $49

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

More Choices Available

Rated 4.875 out of 5 stars
8
$6.99Chewy Price
$14.19List Price
$6.64Autoship 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
6
$12.25Chewy Price
$17.99List Price
$11.64Autoship Price

FREE 1-3 day shipping over $49

API Pond Master Test Kit, 500 count
Rated 4.5714 out of 5 stars
14
$36.95Chewy Price
$45.99List Price
$35.10Autoship Price

FREE 1-3 day shipping over $49

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

FREE 1-3 day shipping over $49

API Phosphate PO4 Freshwater & Saltwater Aquarium Test Kit, 150 count
Rated 4.4444 out of 5 stars
9
$13.99Chewy Price
$19.59List Price
$13.29Autoship Price

FREE 1-3 day shipping over $49

API pH Freshwater Aquarium Test & Adjuster Kit, 250 count
Rated 3.625 out of 5 stars
8
$12.29Chewy Price
$17.29List Price
$11.68Autoship 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
8
$23.96Chewy Price
$37.29List Price
$22.76Autoship Price

FREE 1-3 day shipping over $49

API Pond 5-IN-1 Test Strips, 25 count
Rated 4.3333 out of 5 stars
6
$13.99Chewy Price
$19.59List Price

FREE 1-3 day shipping over $49

API Reef Aquarium Master Test Kit, 1 count
Rated 4.6667 out of 5 stars
12
$32.79Chewy Price
$45.99List Price
$31.15Autoship Price

FREE 1-3 day shipping over $49

API Copper Cu+ Freshwater & Saltwater Aquarium Test Kit, 90 count
Rated 5 out of 5 stars
2
$12.50Chewy Price
$16.29List Price
$11.88Autoship 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
1
$8.54Chewy Price
$15.39List Price
$8.11Autoship Price

FREE 1-3 day shipping over $49

API Aquarium Water Conditioner & Tropical Fish Food Kit
Rated 5 out of 5 stars
3
$14.99Chewy Price
$39.19List Price
$14.24Autoship Price

FREE 1-3 day shipping over $49

API Calcium Saltwater Aquarium Test Kit, 1 count
Rated 5 out of 5 stars
4
$9.12Chewy Price
$17.99List Price
$8.66Autoship Price

FREE 1-3 day shipping over $49

API pH Freshwater & Saltwater Aquarium Test Strips, 25 count
Rated 5 out of 5 stars
1
$12.63Chewy Price
$16.59List Price
$12.00Autoship Price

FREE 1-3 day shipping over $49

API High Range pH Fresh & Salt Water Aquarium Test Kit, 160 count
$7.67Chewy Price
$12.09List Price
$7.29Autoship Price

FREE 1-3 day shipping over $49

Salifert Aquarium Carbonate Hardness/Alkalinity Test Kit
$15.22Chewy Price
$16.46List Price
$14.46Autoship Price

FREE 1-3 day shipping over $49

API KH Carbonate Hardness Fresh & Salt Water Aquarium Test Kit
$8.51Chewy Price
$11.69List Price
$8.08Autoship 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
2
$8.59Chewy Price
$12.09List Price

FREE 1-3 day shipping over $49

Salifert Aquarium Magnesium Test Kit
$17.98Chewy Price
$19.61List Price
$17.08Autoship Price

FREE 1-3 day shipping over $49

ATI Professional ICP-OES Water Analysis
$44.95Chewy Price

FREE shipping over $49

Salifert Aquarium Nitrate Test Kit
$15.96Chewy Price
$17.37List Price
$15.16Autoship Price

FREE 1-3 day shipping over $49

Salifert Aquarium Ammonia Test Kit
$12.49Chewy Price
$13.99List Price
$11.87Autoship Price

FREE 1-3 day shipping over $49

Salifert Aquarium Nitrite Test Kit
$11.79Chewy Price
$11.86List Price
$11.20Autoship Price

FREE 1-3 day shipping over $49

Salifert Aquarium Phosphate Test Kit
$16.73Chewy Price
$19.61List Price
$15.89Autoship Price

FREE 1-3 day shipping over $49

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

FREE 1-3 day shipping over $49

ASF SeaTest KH (Alkalinity) Fish Aquarium Water Test Kit, 100 count
$17.49Chewy Price

FREE 1-3 day shipping over $49

Salifert Aquarium Copper Test Kit
$15.48Chewy Price
$16.97List Price
$14.71Autoship 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

Frequently Asked Questions about Aquarium Water Test Kits & Strips

How accurate are aquarium test kits?

Aquarium test kits are usually accurate enough for good fishkeeping, but they can range in accuracy depending on which kit you choose. Aquarium water tests that come with testing solutions and test tubes are less accurate than scientific-grade fish tank water testers, but far more reliable than basic aquarium test strips. You can find fish tank water test kits that test for various water parameters, including ammonia, pH and nitrate and nitrite levels.

How often should I test my aquarium water?

You should test your aquarium water weekly as a regular practice and more often if you suspect there's a problem. Test your water anytime you make a big change like adding lots of water or introducing new fish or plants. Some experts recommend testing the water every few days when you first set up your tank, just to be sure the water parameters are properly in balance.

What are the best aquarium water test kits?

The best aquarium water test kits are master kits designed for the type of tank you have. These usually contain separate testing materials for ammonia, nitrate and nitrite levels as well as pH. You may want to supplement your water testing kit arsenal with additional tests for hardness, alkalinity, phosphates and copper, depending on specific needs of your fish. Most experts recommend against relying on aquarium water test strips for regular testing, but they can be helpful as a supplemental testing method.