How Much Zinc Is Too Much For Fish Aquaponics?
How Much Zinc Is Too Much For Fish Aquaponics? Levels of zinc should be kept between 0.03 and 0.05 ppm as most fish will become stressed at 0.1 to 1 ppm, and will start dying off at 4-8 ppm. How much zinc is too much plants? Diagnostic soil and plant tissue tests Concentrations above 150