Review on Fish Water Quality API Test Kit by Nicole Cook

I've been using API Test Kits for over 14 years and have always found them quick, easy, reliable and inexpensive. If you are just starting out with a pond or aquarium, consider purchasing an API Master test kit. The API Freshwater Master Test Kit is a comprehensive kit that is cheaper than buying individual bottles. * The master test kit contains *ammonia, *nitrite, *nitrate, *pH and *high range pH test kits. You still need to buy KH, GH test kits separately. Although not included in the main test kit (I've always wondered why), KH/GH tests are equally important to the balance and maintenance of your pond.