API pH High Range Test Kit Fresh/Saltwater

API HIGH RANGE pH TEST KIT may be used in fresh or saltwater aquariums to measure pH levels in the range of 7.4-8.8. Unbalanced pH levels, resulting from fish waste and the build-up of natural acids, are unhealthy for fish. Use kit to measure and correct pH levels for a healthy African cichlid, marine, or goldfish aquarium. Kit comes with one high range pH test solution bottle, one instructional booklet, two colour cards, and one capped glass test tube.