Description Colombo Pond GH Test Kit Colombo Pond GH Test Kit accurately measures general hardness in aquarium and pond water. Regular testing of your pond water quality will help ensure optimum health of your fish. The only way to know what the GH level is, is by testing the water with a GH test kit. Regular testing, especially in new ponds, will prevent damage caused by low GH. Colombo GH Pond Test Kit contains 40 tests.
