API Copper Test Kit Liquid 1.25oz Fresh/Saltwater

"API COPPER TEST KIT allows for the fast, easy, and accurate measuring of copper levels in fresh and salt water, which is particularly necessary for effective parasitic treatment for diseased fish. A low copper level could make the treatment ineffective, whereas a high copper level could cause fish death. Kit reads Copper levels 0 - 4 mg/L and contains 1 Copper test solution bottle, one instructional booklet, one capped glass test tube, and one colour card. "