Sunny Posted October 17, 2021 Share Posted October 17, 2021 Hi everyone, after having my first guppies die on me, I’m trying to figure out my water. I’m showing a pretty big difference between the Coop strips and API test kit. The test kit did expire in January, but even before then it was showing my PH to be much higher than the aquarium coop test strips do (the difference didn’t matter until I tried to keep guppies!) Thanks! Link to comment Share on other sites More sharing options...
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