API 3 Pack of Carbonate KH Test Kits for Fresh and Salt Water Aquariums hollandandbarrett large amount for home and

large amount for home and daily use

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API 3 Pack of Carbonate KH Test Kits for Fresh and Salt Water Aquariums hollandandbarrett large amount for home andAPI 3 Pack of Carbonate KH Test Kits for Fresh and Salt Water Aquariums Tests tap water & fresh or saltwater aquariums for carbonate hardness (KH). Helps prevent fish stress caused by rapid pH shifts, the result of low levels of KH. Product Information Liquid test for fresh and saltwater Helps detect stress on fish caused by rapid pH shifts, the result of low KH levels Contains color chart, clear instructions and glass tube(s)