My pond is about 2 months old. I haven't been too concerned about the water parameters, because I started my 55 gallon MB with 4 cu. ft. of well seasoned k1 media and have had a fairly light fish load of only goldfish. I checked the water today for the first time and was surprised that nitrates are pretty close to 0. Ammonia and nitrites are also close enough to 0. Isn't this kind of unusual? I do have plants (water lilies, cattails, pickerel rush) that are consuming nitrates, but I am still surprised because my source water contains nitrates at about 25ppm.