Review on 🌊 Accurate PondCare Mars Copper Test Kit: Ensuring Pristine Water Quality by Jihye Rivera

Unless my kit is from a bad batch the readings are a joke! If you don't want to poison and kill your fish, use digital counters for accuracy. It costs four times as much, but go easy on your fish! The picture speaks for itself, both tests were carried out simultaneously with the same water sample! If you use cupramine (ionized copper), anything above 0.7ppm, your fish are dead! Starch (chelated copper), safer than ionized copper, above 2.5ppm and your fish are dead!