API pH Freshwater & Saltwater Aquarium Test Strips, 25 count

By API
Rated 5 out of 5 stars
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API pH Freshwater & Saltwater Aquarium Test Strips, 25 count slide 1 of 8
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API pH Freshwater & Saltwater Aquarium Test Strips, 25 count slide 1 of 8
$14.24Chewy Price
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About This Item

  • Tests a wide range of pH levels from 6.0 to 9.0 in one easy step—simply dip a test strip into the water and read.
  • Highly accurate color charts provide precise test results, identifying problems in your aquarium.
  • Chart colors are distinctive, making test results easy to read.
  • Each purchase comes with 25 strips, so you can perform the aquarium maintenance you need.
  • Superior stay-dry tube ensures testing accuracy.
Play Video: Learn More About API From Our Team of Experts
Learn More About API From Our Team of Experts

Help lower your aquarium's pH level with API's pH Down or raise it with API's pH Up water treatment.
Help set and stablize your aquarium's pH level with API's Proper pH 6.5, Proper pH 7.0, Proper pH 7.5, or Proper pH 8.5 water treatement.



About API Testing

Testing the Waters

For fish to thrive, their aquarium water must be similar to the water in their natural environment. Poor water quality can cause stress, illness and even the loss of your fish. Important water quality parameters include ammonia, nitrite, nitrate, and pH. These can vary over time, and they are invisible to the eye, which is why it is necessary to test weekly. Choose from a wide range of API testing options like the Freshwater Master Test Kit or 5-in-1 Test Strips to accurately evaluate your water.

Pressed for Time? Just Dip and Read

Simply dip an API test strip into your aquarium, swirl it twice, and then use the color-coded chart to determine if your water is within safe parameters or if adjustments are needed. That’s it! API test strips are available in a 5-in-1 version, which includes testing for pH, nitrite, nitrate, carbonate, and general hardness. Ammonia and pH test strips are also available so you can mix and match according to your needs.

The Scientific Approach

Get professional results from the comfort of your home with API test kits. Measure up to six parameters with API Master Test Kits, or pick and choose from a wide variety of individual test kits. Both types of kits come with test tubes and a laminated, calibrated color card. API test kits allow for numerous tests, making them an inexpensive way to help keep your aquarium water quality in check.

How to Correct Aquarium Water Parameters

Too Much Ammonia?

Ammonia is released into the water through gills, urine, uneaten food and more. API Ammo-Lock detoxifies it instantly.

Inappropriate pH Levels?

Fish require a specific pH level to thrive. Use API pH Down to lower freshwater aquarium water pH to the right level.

Too Much Nitrite?

Use API Quick Start to quickly consume nitrite and help maintain an active biological filter.

Nitrates Too High?

API Nitra-Zorb helps remove nitrate and other toxins that can be harmful to fish and lead to algae growth.

About API

The team at API has a passion for fish and understands the rewards and relaxation fishkeeping can bring. For almost 60 years, they have developed premium products with a focus on proven and effective results. API offers a range of testing kits, water conditioners and nutritionally superior fish foods. They are dedicated to making a better underwater world for the benefit of fish and those who keep them.

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Fish TypeTropical Freshwater, Marine Fish, Betta...Tropical Freshwater, Betta, Cichlid...Tropical Freshwater, Marine Fish, Betta...Tropical Freshwater, Marine FishTropical Freshwater, Marine Fish
Aquarium TypeFreshwater, SaltwaterFreshwater, SaltwaterFreshwater, SaltwaterFreshwater, SaltwaterFreshwater, Saltwater

Questions & Answers

1 Customer Questions


We have been treating our dog for bladder stones and must monitor her urine for acidity. Can these strips be used for that?
Answer by ChewyJan 16, 2019
These strips are designed to monitor the pH level in water and may not be effective in accurately detecting the pH level in urine.

ReviewsWrite a Review

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1 Customer Reviews



Rated 5 out of 5 stars
By dawnmm on Feb 27, 2019

i love chewy

this product is very easy to use and the price was perfect