This is the first test I have taken. This is a new pond (it has been full since February. I have already stocked it with 100 Blue Catfish, 100 CNBG, and 10 lbs of FHM. I just put 30 LMB in yesterday. The fish are thriving. I have cleared it once with alum, but it is fairly turbid again due to some bare banks and lots of clay. I now have vegetation coverage on the banks, so I may clear it again in the near future. The test was taken today at 1500. The rain was on Monday/Tuesday. I do not lose water.