found at Pet Circle
Api Copper Test Kit Liquid Fresh Saltwater Each Pet: Fish Category: Fish Supplies Size: 0.1kg
Rich Description: API has been an industry leader in fish care nutrition treatments testing and pond products for over 50 years giving them a keen insight into your aquarium and its needs making them the clear choice for fish enthusiasts around the world.
Easy to use Copper Test kit
Helps in the maintenance of copperbased fish treatments
Measures both free and chelated copper
Suitable for use in saltwater aquariums