Aquarium Water Test Kits & Strips

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

Rated 4.3673 out of 5 stars
49
$14.49Chewy Price
$37.49List Price
$13.77Autoship Price

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

Rated 4.0488 out of 5 stars
41
$12.98Chewy Price
$18.28List Price
$12.33Autoship Price

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API Freshwater Aquarium Master Test Kit, 800 count

Rated 4.6027 out of 5 stars
146
$35.98Chewy Price
$50.48List Price
$34.18Autoship Price

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

Rated 4.8889 out of 5 stars
9
$7.99Chewy Price
$14.19List Price
$7.59Autoship Price

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ASF SeaTest PO4- Phosphate Fish Aquarium Water Test Kit, 40 count

$21.59Chewy Price
$23.99List Price

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Salifert Aquarium Carbonate Hardness/Alkalinity Test Kit

$15.16Chewy Price
$16.46List Price
$14.40Autoship Price

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Nyos Calcium Reefer High Sensitivity Seawater Calcium Test Kit

$19.99Chewy Price

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API Ammonia Freshwater & Saltwater Aquarium Test Kit, 130 count

Rated 4.8571 out of 5 stars
14
$15.49Chewy Price
$21.78List Price
$14.72Autoship Price

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Bundle: Betta Fish Starter Kit - Tetra LED Cube Kit Fish Aquarium, GloFish Artificial Plant, Te...

$65.09Chewy Price
$72.64List Price

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Instant Ocean Testing Hydrometer for Aquariums, 1 count

Rated 3.4 out of 5 stars
10
$7.59Chewy Price
$11.99List Price
$7.21Autoship Price

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ATI Professional ICP-OES Water Analysis

$44.95Chewy Price

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Lifegard Aquatics All Purpose 5-Way Fish Pond Test Strips, 25 count

$23.90Chewy Price

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API GH & KH General & Carbonate Hardness Freshwater Aquarium Test Kit

Rated 4.7273 out of 5 stars
22
$11.96Chewy Price
$16.78List Price
$11.36Autoship Price

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API Saltwater Aquarium Master Test Kit, 550 count

Rated 4.2941 out of 5 stars
17
$35.98Chewy Price
$50.48List Price
$34.18Autoship Price

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

Rated 4 out of 5 stars
9
$13.58Chewy Price
$26.39List Price
$12.90Autoship Price

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ASF SEATEST GH Total Hardness Fish Aquarium Water Test Kit, 40 count

$17.72Chewy Price
$19.69List Price

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Salifert Aquarium Copper Test Kit

$14.81Chewy Price
$16.97List Price
$14.07Autoship Price

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API pH Freshwater Aquarium Test Kit, 250 count

Rated 4.3684 out of 5 stars
19
$7.98Chewy Price
$11.28List Price
$7.58Autoship Price

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API Pond Wide Range pH Test Kit 160-Test Pond Water Test Kit, 1 count

Rated 3.5 out of 5 stars
2
$9.48Chewy Price
$13.48List Price
$9.01Autoship Price

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Bundle: Tropical Fish Starter Kit - Tetra Crescent Aquarium Kit, 5-gal + 4 other items

$88.77Chewy Price
$92.29List Price

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API Ammonia NH3/NH4 Freshwater & Saltwater Aquarium Test Strips, 25 count

Rated 4 out of 5 stars
4
$16.98Chewy Price
$23.98List Price
$16.13Autoship Price

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API Replacement Test Tubes for Aquarium Liquid Test Kits, 24 count

Rated 4.5 out of 5 stars
8
$29.98Chewy Price
$41.98List Price
$28.48Autoship Price

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Lifegard Aquatics Fish Pond Ammonia Test Strips, 25 count

$24.94Chewy Price

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API High Range pH Fresh & Salt Water Aquarium Test Kit, 160 count

$9.48Chewy Price
$13.28List Price
$9.01Autoship Price

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API Reef Aquarium Master Test Kit, 1 count

Rated 4.6667 out of 5 stars
12
$34.99Chewy Price
$48.98List Price
$33.24Autoship Price

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Salifert Aquarium Potassium Test Kit

$18.81Chewy Price
$17.87Autoship Price

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ASF SeaTest KH Alkalinity Fish Aquarium Water Test Kit, 100 count

$18.89Chewy Price

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ASF SeaTest pH Fish Aquarium Water Test Kit, 100 count

$12.39Chewy Price

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API pH Freshwater Aquarium Test & Adjuster Kit, 250 count

Rated 3.625 out of 5 stars
8
$12.98Chewy Price
$18.28List Price
$12.33Autoship Price

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Salifert Aquarium pH Test Kit

$9.86Chewy Price
$10.92List Price
$9.37Autoship Price

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Bundle: Goldfish Starter Kit - Tetra Crescent Aquarium Kit, 5-gal + 4 other items

Rated 2 out of 5 stars
1
$78.53Chewy Price
$86.49List Price

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Salifert Aquarium Nitrate Test Kit

$16.33Chewy Price
$17.37List Price
$15.51Autoship Price

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API Nitrate NO3 Freshwater & Saltwater Aquarium Test Kit, 90 count

Rated 4.6667 out of 5 stars
6
$13.98Chewy Price
$19.78List Price
$13.28Autoship Price

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API Phosphate PO4 Freshwater & Saltwater Aquarium Test Kit, 150 count

Rated 4.4444 out of 5 stars
9
$14.98Chewy Price
$20.98List Price
$14.23Autoship Price

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API KH Carbonate Hardness Fresh & Salt Water Aquarium Test Kit

$12.78Chewy Price
$12.14Autoship Price

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API Calcium Saltwater Aquarium Test Kit, 1 count

Rated 5 out of 5 stars
4
$13.98Chewy Price
$19.78List Price
$13.28Autoship Price

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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 decor 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.