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Do Ferts With Macro Throw Off Ammonia Test? Question

Discussion in 'Aquarium Water' started by surajk, Apr 20, 2019.

  1. surajkValued MemberMember

    I started dosing tropica specialised nutrition macro + micro liquid ferts for my plants. Now my fish are doing absolutely fine. But my ammonia tests consistently show 1ppm. Do these ferts add some sort of non-toxic nitrogen molecule that throws off the test?
    I know it is supposed to add nitrogen, just assumed it would be a nitrate. I have no algae blooms and am dosing carefully.

    I tested by adding a drop of tropica in tap water and testing ammonia. The test tube went from yellow to dark green, so I'm certain it is fooling the test. I guess the question is why and is it doing anything to the test. Am also adding flourish excel for a carbon source.

    I have 8 Neon Tetras, guppies and a nerite in a 10g tank, Java ferns, Moss, Anubias and some ludwigia repens red.
  2. surajkValued MemberMember

    So I did some research. Looks like this fert has ammonium nitrate. Does anyone know if that dissociates into ammonia in water or stays stabilized as ammonium nitrate. My Ph is 7.8.

    My fish have shown no sign of stress from the 1ppm ammonia level shown by the api test.