1.   ELOS Ca Calcium Test Kit
    $27.99

    ELOS Ca Calcium Test Kit

    PrimaLine CA - Calcium Water Analysis Kit

    Marine Depot Test Kit of the Year 2013

    Precise Titrimetric Ca (Calcium) test kit for Marine Aquariums. 50+ tests (depending on Ca levels)

  2.   ELOS KH Alkalinity Test Kit ELOS KH Alkalinity Test Kit
    $17.99

    ELOS KH Alkalinity Test Kit

    PrimaLine KH - Alkalinity Water Analysis Kit

    Marine Depot Test Kit of the Year 2013

    Precise Titration KH (Carbonate Hardness) test kit for Freshwater/Marine Aquariums. Up to 50+ tests per kit

  3.   ELOS MG Magnesium Test Kit
    $25.99

    ELOS MG Magnesium Test Kit

    Expert Line MG - Magnesium Water Analysis Kit

    Marine Depot Test Kit of the Year 2013

    Each drop equals 50 mg/Lt of magnesium. For Fresh and Marine Aquariums

  4. ELOS No3 Nitrate Test Kit ELOS No3 Nitrate Test Kit
    $26.99

    ELOS No3 Nitrate Test Kit

    PrimaLine No3 - Nitrate Water Analysis Kit

    Marine Depot Test Kit of the Year 2013

    Precise Low range Colorimetric NO3 (Nitrate) kit for Freshwater & Marine Aquariums. Does up to 50+ tests per kit.

  5. ELOS No2 Nitrite Test Kit
    $20.99

    ELOS No2 Nitrite Test Kit

    PrimaLine No2 - Nitrite Water Analysis Kit

    Marine Depot Test Kit of the Year 2013

    ELOS Precise Colorimetric NO2 (Nitrite) test kit for Freshwater and Marine Aquariums. Does up to 50+ tests per kit.

  6.   ELOS Po4 Phosphate Test Kit
    $22.99

    ELOS Po4 Phosphate Test Kit

    PrimaLine PO4 - Phosphate Water Analysis Kit

    Marine Depot Test Kit of the Year 2013

    Precise Colorimetric PO4 (Phosphate) kit for Freshwater and Marine Aquariums. Does up to 162 tests per kit

  7. ELOS PH Marine Test Kit
    $17.99

    ELOS PH Marine Test Kit

    Expert Line PH - Marine Water Analysis Kit

    Marine Depot Test Kit of the Year 2013

    pH Test for Marine aquarium (7.6 - 9.0)

  8. ELOS NH4 Ammonia/Ammonium Test Kit
    $20.99

    ELOS NH4 Ammonia/Ammonium Test Kit

    NH4 Ammonia/Ammonium Water Analysis Kit

    Marine Depot Test Kit of the Year 2013

    Precise and easy to read test for ammonia for Freshwater and Marine.

  9. ELOS Professional Po4 Phosphate Test Kit
    $47.99

    ELOS Professional Po4 Phosphate Test Kit

    Expert Line No3 - Phosphate Water Analysis Kit

    Marine Depot Test Kit of the Year 2013

    Precise Low Range Colorimetric PO4 (Phosphate) kit for the Marine Aquarium. Does up to 162 tests per kit

  10. ELOS K Potassium Test Kit
    $36.99

    ELOS K Potassium Test Kit

    Expert Line No3 - Potassium Water Analysis Kit

    Marine Depot Test Kit of the Year 2013

    In an aquarium where zeolite-based filtration (i.e. Filtra M, biopellets) methods are used, its concentration often can become too low.