||Temporarily out of stock, Please continue to order. Inventory shown reflects only our Pembroke location. Products are usually restocked weekly / and or filled and sent from one of our other locations .
Tests tap water and freshwater aquariums for general hardness (GH) and carbonate hardness (KH). Helps detect stress on fish caused by rapid pH shifts, which result from low KH levels and helps aquarists duplicate the natural habitat of their fish.