Aquarium Co-Op Multi-Test Strips

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  • Measures pH, Nitrite, Nitrate, GH, KH, and Chlorine
  • Results in 60 Seconds
  • Available in Two Sizes: 25 and 200 Tests
  • Laminated Comparison Card

Frequently testing your water quality is one of the keys to successful fishkeeping. We developed Aquarium Co-Op Multi-Test Strips to be fast, comprehensive, and accurate — which makes testing your aquarium water easier than ever. Measure nitrate, nitrite, hardness (GH), buffer (KH), pH, and chlorine levels in just 60 seconds.

This test helps you understand your readings with helpful information and suggestions on the laminated color chart we've included. We created these to make your life easier and save you money when it comes to testing your water.

Customer Reviews

Based on 1006 reviews
Colorado (Denver, CO, US)
Work as expected

Used the strips and immediately check with an API tests. Yes , they were the same readings. It’s a great quick answer. Between water changes, or when adding fish to see how it affects the aquarium system.

Mike C. (Sun City, AZ, US)
Great product

As a shrimp keeper I never had much faith in test strips. These along with advice I pulled from Corys videos changed my mind. I compared test with my API master kit and found them to be spot on and testing is much faster. This is important when your running as many tanks as I do. I used to test if a problem came up. Now I test regularly and catch a problem before it gets bad. Testing more frequently showed me I was doing water changes more often than needed.
Thanks for all you and your team do for this wonderful hobby of ours

Linda s. (Knoxville, TN, US)

The aquarium co-op led light is a perfect fit for my 36 gallon tank! It fits securely over my tank, and the different light settings are very helpful
I love it and my plants are doing great! The liquid fertilizer is great
I am pleased with all of the products that I bought from aquarium co-op. It' s nice to have a one stop shop that I can count on for quality products. Thank you!

Mohammed J. (Avondale, AZ, US)

Very good

Jonathan N. (Los Angeles, CA, US)
Easy, detailed tests

Was using the imagitarium ones before and these are significantly better.