Quickly measure and modify the six aquarium levels that are most important to the health of your freshwater fish with the API Freshwater Aquarium Master Test Kit. To stay healthy and thrive, fish need properly balanced levels of ammonia, pH, high range pH, nitrite and nitrate. These levels can change rapidly and create harmful conditions when fish waste, uneaten food or other organic matter accumulate, or when untreated water is added. The API Freshwater Aquarium Master Test Kit measures these six parameters with scientific accuracy and provides professional results. It comes with four test tubes, a holding tray, a test tube rack and a computer calibrated, laminated color card. Just fill the test tubes, add the test drops and compare results to the color card. Then follow the recommendations on the card if action is required.

API Freshwater Master Test Kit

SKU: 1716301034
$29.99Price
  • 01034

  • Directions for Testing Low Range pH NOTE: Read instructions thoroughly before testing. DO NOT allow Test Solutions to get into aquarium or pond.

    To remove childproof safety cap: With one hand, push red tab left with thumb while unscrewing cap with free hand.

    • Fill a clean test tube with 5 ml of water to be tested (to the line on the tube).
    • Add three drops of Indicator Solution, holding dropper bottle upside down in a completely vertical position to ensure uniformity of drops.
    • Cap the test tube and invert tube several times to mix solution. DO NOT hold finger over open end of tube, as this may affect the test results.
    • Determine the pH reading by matching the color of the solution against those on the pH Color Chart. The tube should be viewed against the white area beside the color chart. Color comparisons are best made in a well-lit area. The closest match indicates the pH of the water sample. Rinse the test tube with clean water after each use.

    Directions for Testing High Range pH Read thoroughly before testing. DO NOT allow Test Solutions to get into aquarium. To remove childproof safety cap: With one hand, push red tab left with thumb while unscrewing cap with free hand.

    • Fill a clean test tube with 5 ml of water to be tested (to the line on the tube).
    • Add five drops of Indicator Solution, holding dropper bottle upside down in a completely vertical position to ensure uniformity of drops.
    • Cap the test tube and invert tube several times to mix solution. DO NOT hold finger over open end of tube, as this may affect the test results.
    • Determine the pH reading by matching the color of the solution against those on the High Range pH Color Chart. The tube should be viewed against the white area beside the color chart. Color comparisons are best made in a well-lit area. The closest match indicates the pH of the water sample. Rinse the test tube with clean water after each use.

    Recommended pH Levels A pH of 7.0 is ideal when keeping a community aquarium containing a variety of tropical fish. Goldfish should be kept in their own aquarium and prefer a pH of 7.5. Many Amazonian fish, like angelfish and neon tetras, prefer a pH of 6.5 to 6.8. Mollies and swordtails thrive at a pH 7.2 to 7.5.

    Frequency of Testing The pH should be tested weekly, since natural materials in the water (such as fish waste and decaying food) can cause pH changes.

    Directions for Testing Ammonia Levels

    • Fill a clean test tube with 5 ml of water to be tested (to the line on the tube).
    • Add 8 drops from Ammonia Test Solution Bottle #1, holding the dropper bottle upside down in a completely vertical position to ensure uniformity of drops added to the water sample.
    • Add 8 drops from Ammonia Test Solution Bottle #2, holding the dropper bottle upside down in a completely vertical position to ensure uniformity of drops added to the water sample.
    • Cap the test tube and shake vigorously for 5 seconds. DO NOT hold finger over the open end of the tube, as this may affect the test results.
    • Wait 5 minutes for the color to develop.
    • Read the test results by matching the test solution against the Ammonia Test Color Chart. The tube should be viewed against the white area beside the color chart. Color comparisons are best made in a well-lit area. The closest match indicates the ppm (mg/L) of ammonia in the water sample. Rinse the test tube with clean water after each use.

    What the Test Results Mean In new freshwater aquariums, the ammonia level may surge to 6 ppm (mg/L) or more, and then fall rapidly as the biological filter becomes established. The ammonia will be converted to nitrite (also toxic), then to nitrate. This process may take several weeks. Use Aquarium Pharmaceuticals Stress Zyme to speed up the development of the biological filter. In an established aquarium or pond, the ammonia level should always remain at 0 ppm (mg/L). The presence of ammonia indicates possible overfeeding, too many fish, or inadequate biological filtration.

    The ammonia level is not an indication of the nitrite level; Nitrite is another toxic waste material, which must be tested separately.

    Monitoring Ammonia Levels Regular testing is necessary to make sure the ammonia level is safe. Aquarium and pond water should be tested for ammonia every other day when it is first set up, and once a week after the biological filter has been established (in about 4 to 6 weeks).

    Detoxifying Ammonia Using Ammo-Lock To detoxify ammonia, use Aquarium Pharmaceuticals Ammo-Lock to instantly lock up ammonia. Ammo-Lock does not remove ammonia; it simply converts toxic ammonia to a nontoxic form. Ammonia test kits will still test positive for ammonia, even though it is nontoxic. The biological filter will then consume the nontoxic ammonia, converting it to nitrite and then to nitrate.

    Directions for Testing Nitrite

    • Fill a clean test tube with 5 ml of water to be tested (to the line on the tube).
    • Add 5 drops of Nitrite Test Solution, holding dropper bottle upside down in a completely vertical position to ensure uniformity of drops added to the water sample.
    • Cap the test tube and shake the tube for 5 seconds. DO NOT hold finger over the open end of the tube, as this may affect test results.
    • Wait five minutes for the color to develop.
    • Read the test results by matching the color of the solution against those on the Nitrite Test Color Chart. The tube should be viewed against the white area beside the color chart. Color comparisons are best made in a well-lit area. The closest match indicates the ppm (mg/L) of nitrite in the water sample. Rinse the test tube with clean water after each use.

    What The Test Results Mean In new freshwater aquariums, the nitrite level will gradually climb to 10 ppm (mg/L) or more. As the biological filter becomes established (in 4 to 6 weeks), nitrite levels will drop to 0 ppm (mg/L). In an established pond or aquarium, the nitrite level should always remain at 0 ppm (mg/L). The presence of nitrite indicates possible overfeeding, too many fish, or inadequate biological filtration.

    Monitoring Nitrite Levels Regular testing for nitrite is an essential part of routine maintenance. Water should be tested for nitrite once a week to make sure the nitrite does not reach undesirable level.

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