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API GH KH Hardness Test Kit for Freshwater Aquariums
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.
When keeping freshwater fish and plants, the general hardness (GH) and carbonate hardness (KH) of aquarium water should match their natural habitat. The API GH & KH Test Kit helps you duplicate the natural habitat of your fish to prevent stress, keeping them healthy!
After something different? View all Fish Test Kits.
New to fish care? View our guide to Setting Up a Fishtank.
These are broad guidelines only, designed to assist with feeding your pet based on their weight, age and activity level. Always check the feeding charts on your pet's food packaging in conjunction with these feeding guidelines. Required amounts may differ between individual pets, and adjustments may be required to maintain optimal body weight.
Once or twice daily feeding is recommended for adult dogs, unless otherwise specified by your veterinarian. Puppies and kittens require feeding more regularly, with the total portion divided into three or four meals throughout the day. Ensure fresh water is available at all times.