light behind the test tube:
Nitrite - .25ppm
Ammonia - .50ppm
Nitrate - 0ppm
paper behind the test tube:
Nitrite - .25ppm
Ammonia - .25ppm
Nitrate - 0ppm
it got some redish or pinkish color near the tail too
Nitrite - .25ppm
Ammonia - .50ppm
Nitrate - 0ppm
paper behind the test tube:
Nitrite - .25ppm
Ammonia - .25ppm
Nitrate - 0ppm
it got some redish or pinkish color near the tail too
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