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 744 reviews
Chase R.

Have had no issues. I feel like that their pretty accurate

john r. (West Warwick, RI, US)
They seem accurate

And cheap. Even with shipping.

Pat K. (Brook Park, OH, US)
Great product, Great Company!!

I ordered Aquarium Co-Op Multi-Test strips when I had three of my other brand left. They arrived sooner than I expected (THANK YOU, COREY), and are very accurate. I love how they are packaged, and love the little chart that is included, which tells you what you need to do based on the readings You also get a really cool sticker (of a fish).

Henry C. (West Warren, MA, US)
Aquarium Co-Op Multi-Test Strips

A very quick and accurate way to check fish tank water quality. I had results in 60 seconds that matched my API Master Test Kit results and confident I can trust the strips when you do not have time to do the lengthy testing with vials and solutions. The strips should not replace using the very accurate API Master Kit when time allows. The Multi-Test Strips are great for spot checking fish tank chemistry especially if you see your fish are acting strangely. I will always have Aquarium Co-Op Multi-Test Strips on hand.

Ryan L. (‘Aiea, HI, US)
Good product

Easy to read strips and easy instructions. Very exceptional