Review on FUNSWTM 7 in 1 Aquarium Test Strips: Accurate Water Testing for pH, Nitrite, Nitrate, Chlorine, GH & KH Levels by Sara Gallegos

This product tests seven different items and includes 100 test strips at a reasonable price ($10.38 at the time). These test strips work quickly and are a good water testing tool. I would like to know more about how to reduce certain elements like hardness, carbonates or nitrates. But this requires further research. This is a necessary product that will help my fish.