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 736 reviews
Bobby J. (Wylie, TX, US)

Easy to use and has the same results as my API kit. Fast!

Michael D. (Severna Park, MD, US)
Great tests!

These are easy to read and you only have to wait for one minute.

Ronald V. (Nashville, TN, US)
Test strips

Love these test strips
Fast results
Out preforming other brands
I know My planted aquariums are within acceptable parameters

Tom M. (Phoenix, AZ, US)

Very easy to use.

Mike B.
Aquarium Co-Op Multi-Test Strips

Easiest to read and the best test strips I've ever used. Really appreciate they include suggested parameters on when to change water. Another great product from a company who knows how to cater to the average hobbyist.