API Copper Test Kit

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