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  • API Replacement Test Tubes
    $5.50

    API Replacement Test Tubes

    API TEST TUBES are compatible with any aquarium or pond water test kits and are perfect for testing more water parameters at one time.  **Price fo...

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    $5.50
  • API PH TEST & ADJUSTER KIT(Includes pH down & pH up)
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    $25.00
    $22.00

    API PH TEST & ADJUSTER KIT(Includes pH down & pH up)

    PH TEST & ADJUSTER KIT   The API® pH TEST & ADJUSTER KIT not only allows you to easily and accurately test the pH level in your freshwater...

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    $25.00
    $22.00
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  • API CALCIUM TEST KIT
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    $26.00
    $23.00

    API CALCIUM TEST KIT

    CALCIUM TEST KIT   Calcium is one of the most important elements in a reef aquarium. Reef invertebrates, such as corals, crustaceans, mollusks, an...

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    $26.00
    $23.00
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  • API® PHOSPHATE (PO4) TEST KIT
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    $30.00
    $27.00

    API® PHOSPHATE (PO4) TEST KIT

    Phosphate can enter your aquarium through tap water, fish waste, and decaying organics such as uneaten food and dead algae. Excess phosphate contr...

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    $30.00
    $27.00
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  • API® GH & KH TEST KIT
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    $22.00
    $20.00

    API® GH & KH TEST KIT

    When keeping freshwater fish and plants, the general hardness (GH) and carbonate hardness (KH) of aquarium water should match their natural habita...

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    $22.00
    $20.00
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  • API® pH TEST KIT
    Save 13%
    $15.00
    $13.00

    API® pH TEST KIT

    The API® pH TEST KIT monitors pH to maintain healthy freshwater conditions in your tank. pH control is imperative to prevent the harmful effects of...

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    $15.00
    $13.00
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  • API® AMMONIA TEST STRIPS
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    $32.00

    API® AMMONIA TEST STRIPS

    Use the API® AMMONIA TEST STRIPS as the quick and accurate way to test for the presence of ammonia. Kit reads 0 to 6 ppm of ammonia, and alerts yo...

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    $32.00
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  • API 5-IN-1 TEST STRIPS
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    $26.00

    API 5-IN-1 TEST STRIPS

    API® 5-IN-1 TEST STRIPS are the quick and easy way to test the 5 most important aquarium water parameters – pH, KH, GH, nitrate, and nitrite – in ...

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    $26.00
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  • API AMMONIA TEST KIT
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    $26.00
    $23.00

    API AMMONIA TEST KIT

    The API® AMMONIA TEST KIT measures ammonia to help prevent fish loss, as ammonia is the number one stressor and killer of tropical fish. Ammonia i...

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    $26.00
    $23.00
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  • API NITRITE TEST KIT
    $18.00

    API NITRITE TEST KIT

    Nitrite is produced in the aquarium in the forms of fish waste, uneaten food, and by nitrifying bacteria in your aquarium’s natural cycle as it br...

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    $18.00
  • API® NITRATE TEST KIT
    $23.00

    API® NITRATE TEST KIT

    High nitrate levels in your aquarium indicate a build-up of fish waste and organic compounds, resulting in poor water quality and an increase in a...

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    $23.00
  • API® pH TEST STRIPS - 25 tests
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    $24.00

    API® pH TEST STRIPS - 25 tests

    Use the API® pH TEST STRIPS as a quick and accurate way to test pH levels in your water. These test strips measure a wide range of pH, from 6.0 to...

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    $24.00
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  • API Freshwater Master Test Kit
    $72.00

    API Freshwater Master Test Kit

    FRESHWATER MASTER TEST KIT Measures the most important aquarium levels quickly and accurately Benefits: Tests pH, High Range pH, Ammonia, Nitrite...

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    $72.00