Our reagent is a special concentrated formulation to ensure the accuracy of the testing and safety of the reagent that goes back into your aquarium. We carefully selected famous pharmaceutical grade chemical producers as stable supply. Each batch is safe with international certificate.
Each pack of concentrated KH reagent shall be diluted with 1500 grams (please note that it is not ml) of pure water. Keep the error in +/-1 grams of pure water. Each concentrated reagent pack can be used for about 2 months if the KHGuardian were set to performs a test every four hours with a consumption of 4 grams of solution.
We do not add preservatives to the concentrated KH reagent pack in order to protect the safety of living creatures in your fish tank as the supreme principle.
If your eyes or outer skin comes in contact with the reagent, please do not panic. Just immediately rinse the contaminated body parts with plenty of fresh water. Contact with your body parts is not irritating. But in best cases, please make sure the reagent is kept away from children to avoid possible unknown injuries. Please do not inhale, drink, or swallow reagent. Please always exercise caution when handling chemical reagents and wear protective covering when possible.