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To convert from NH3 to NH3-N, divide by 1.21589:I am by no means a chemistry expert but I do not think that ammonia, nitrite, nitrate are 1:1 relationships, as in its normal for Nitrates to be much higher than 1ppm when 1ppm ammonia is processed (however I would like to know why as well since it would see it would be since NH4 -> NO2 ->N03 seems like it should be since there is one Nitrogen per...I assume that nitrogen is extracted from the air somwhere along in this conversion as there is no way I can see that this can be a 1:1:1 relationship, at least I sure dont think my mbuna tank makes 40+ PPM of ammonia a week! (40mg/L * 280L = 11.2grams) - hrm, maybe that is more realistic than I thought, thats only ~11ml... Hopefully I am making SOME sense here...
4 ppm NH3 = 3.29 NH3-N
3.29 NH3-N is equivalent to 3.29 NO2-N and 3.29 NO3-N.
To convert from NO2- to NO2-N, divide by 3.286.
3.29 NO2-N = 10.81 ppm NO2-.
Then convert from NO3-N to NO3- by multiplying by 4.42664:
3.29 NO3-N = 14.56 NO3-.
So, 4 ppm NH3 will turn into 10.81 ppm NO2- which will turn into 14.56 ppm NO3-.