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  • Copper (Cu) Test Kit - Elos

    Copper (Cu) Test Kit - Elos

    ELOS

    $21.99
    The ELOS Copper Test Kit combines ease-of-use, with laboratory-grade precision. It can be used to detect copper or to measure residual copper levels before and after using copper cures in fish-only...
  • Magnesium (Mg) Test Kit - Elos

    Magnesium (Mg) Test Kit - Elos

    ELOS

    $25.99
    Mg Magnesium Water Analysis for AquariumMagnesium is a major salt in natural seawater. Contrary to its significance this element was ignored for a long time. We know today that Magnesium creates a...
  • Nitrate (NO3) Test Kit - Elos

    Nitrate (NO3) Test Kit - Elos

    ELOS

    $25.99
    Biological filtration is a method that uses naturally occurring nitrifying bacteria to detoxify nitrogenous wastes. One type of bacteria (Nitrosomonas spp.) converts ammonia to nitrite while another...
  • Nitrite (NO2) Test Kit - Elos

    Nitrite (NO2) Test Kit - Elos

    ELOS

    $21.99
    Biological filtration is a method that uses naturally occurring nitrifying bacteria to detoxify nitrogenous wastes. One type of bacteria (Nitrosomonas spp.) converts ammonia to nitrite while another...