Review on 🐠 JNW Direct Aquarium Test Strips for Fish Tank 6 in 1: Accurate Water Testing for Freshwater and Saltwater Aquariums - 50 Count by Angelica Obegi

Obviously these strips are very easy to use. However, I'm not sure if they provide enough information. I've only used them a couple of times but found the color grading difficult and sometimes the color varies within the same square. They don't seem to be useful for accurate reading, although they are good for more extreme balance problems. A few years ago I did some tube testing on a previous tank and I think I'll come back to that. *UPDATE 7/2020: I've used these strips a few more times, gotten better at reading them and think I'll keep using the rest of the one jar I ordered. By then I should be able to tell how accurate they are.