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 672 reviews
Karla S. (League City, TX, US)
Test strips

I just saw where I should have received the Laminated Comparison Card. I use the side of the bottle. I like how simple they are to use.

Todd R. (Fishers, IN, US)
Great Products

Test strips worked great. Very easy to use. Much more convenient to dip the strip in the tank than filling tray tubes, etc.

Terry H. (Ozark, MO, US)
Easy To Use

I hope they’re accurate. I appreciate there are more tests on the strips than I was testing beforehand.

Doug H. (Starksboro, VT, US)
Test strips

Super easy and economical way to keep tabs on aquarium health. Great product!

Tom O. (Pulaski, WI, US)
test strips

I love the strips, very handy. The only thing missing is an ammonia test. My pH, KH, and GH rarely change, but ammonia is one thing everyone fights with.