Testing water parameters weekly helps prevent invisible water problems that can be harmful to fish. Fish continually release ammonia into the aquarium through their gills, urine and solid waste. Uneaten food and decaying organic matter also add ammonia to the water. Small amounts of ammonia stress fish; large amounts of ammonia kill fish. Ammonia is the #1 killer of freshwater fish. The API AMMONIA TEST KIT for freshwater and saltwater squariums contains two liquid dropper bottles, easy-to-read instructions with information on how to test and correct unsafe water conditions, two color charts and glass test tube with snap-tight cap. This test kit reads ammonia levels from 0 to 8 ppm. Use the API API AMMONIA TEST KIT several times a week for 4-6 weeks when you start a new aquarium, and then use it weekly for monitoring or when problems occur. This aquarium test kit is for use in freshwater and saltwater aquariums. With API Aquarium products, it’s easy to keep a beautiful saltwater, freshwater or reef aquarium. For over 50 years, API has been creating innovative, research-driven solutions that make it easier to care for your fish and aquarium. API Aquarium Treatment Supplies are designed to work in conjunction with each other to provide best results to control algae, promote healthy bacterial growth and help control and cure fish diseases and conditions such as ich and fin rot. They work to provide a safe, hospitable environment for fish such as tropical community fish, cichlids, goldfish and more. With API, you can spend more time admiring your fish, and less time scrubbing your tank. Make sure to use all products as directed in order to ensure the best results.

Prevent excess phosphate in your fresh or saltwater tank with API Phosphate PO4 Fresh & Salt Water Aquarium Test Kit. Phosphate can come from tap water, waste, uneaten food or dead algae. In freshwater tanks, high phosphate levels can cause algae and green water blooms; in saltwater tanks, it can stunt the growth of hard corals. This easy-to-use test kit measures phosphate levels from 0 to 10. Simply fill a test tube with your tank water, add a few drops of both test samples and shake. Then compare your results to the color card and follow instructions to lower phosphate if necessary. Frequent testing is recommended to help maintain healthy aquarium conditions.

Key Benefits

  • Helps maintain a healthy aquarium by allowing you to measure and control phosphate levels.
  • Frequent testing is recommended to ensure your tank is healthy for your aquarium life.
  • Prevents potentially harmful algae and green water blooms in fresh water.
  • Promotes the growth of hard corals in salt water.
  • Kit includes two bottles of liquid test reagent, two-color cards, glass test tube and information on how to correct water condition.

What's Included

(2) bottles of liquid test reagent, (2) laminated, computer calibrated color cards, glass test tube with snap-tight cap, step by step instructions and information on how to correct unsafe conditions.

Help keep your aquarium in tip-top shape with API's Phos-Zorb filtration pouch.

    Phosphate can enter your aquarium through tap water, fish waste, and decaying organics such as uneaten food and dead algae. Excess phosphate contributes to unsightly algae and green water blooms, and in saltwater, excess phosphate can inhibit the growth of hard corals.

    The API® PHOSPHATE TEST KIT tests phosphate levels from 0 to 10 ppm so that you can easily monitor the condition of your aquarium water and may be used in both fresh and saltwater aquariums.


    Contains 150 tests and includes 2 test solutions, easy-to-ready instructions, glass test tube and 2 color charts



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