API Copper Cu+ Test Kit Monitor Copper when Medicating in Freshwater and Saltwater Aquariums [Aquarium Water Test Kits, Aquarium Supplies] 3 count

Aquarium Pharmaceuticals' Copper Test Kit tests copper levels in water from 0 to 4 ppm, and measures both free and chelated copper. Always monitor aquarium copper levels when medicating. For use in Freshwater or Saltwater Aquariums or Ponds. * The accurate way to test aquarium quality * Tests copper levels from 0 to 4 ppm * Suitable for fresh and saltwater * 90 Tests per Copper Cu Test Kit