The alkalinity is in dKh and the kH reading is in ppm (mg/L) I didn’t convert anything just used two different tests. The alkalinity at 16 was tested at my local shop and the kH was tested at home.I can't see the video. I would just point out that your ammonia is higher than usual, and your pH is a little low - which is probably what's protecting your fish from being somewhat effective. Since your alkalinity is so far off (also probably not affecting your fish) - I wonder if your testing is correct. If you calculate the assumed mg/l based on an alkalinity it would be 288 not 120.