Aquaculture Fresh Water Nitrate Test Kit Nitrates are found in nature and many of our food material. Generally, the level of Nitrates is quite low in ground water. In aquatic environments Nitrates may seep in thru’ fertilizer runoff from cultivated lands, municipal, industrial and also private sewage disposal systems and waste water, refuse dumps and decaying plant debris. High Nitrate levels in Drinking water pose a great health risk to Infants, causing Methemoglobinemia, “Blue Baby Syndrome.” The presence of Nitrates in the Aquatic environment does not pose such a problem as Ammonia or Nitrites. Nitrate concentrations of 50 ppm or so are quite safe for fish. But if the levels reach 80 ppm then the problem begins, as this high concentration can be toxic. Another problem with Nitrates is that Algal blooms happen and these are highly detrimental to the aquatic species. Bacterial and Fungai infections prevail in these conditions and cause the Fish to lose immunity, along with their capacity to reproduce, thus retarding growth. AQUASOL Nitrate test kit ranges from 0 to 160 ppm. This is based on color comparison and the colors on the comparator are clearly discernable. This is available for Fresh water. Product Range Code Range AE 318 5,10,20,40,80,160 ppm as Nitrate