Pond Boss Forums MANAGING AN EXISTING POND Fertilization fertilize or feed ?

Test Results
pond pH (1:1 Water) 6.88 Optimum Phosphorus, ppm 6.86 Very Low Potassium, ppm 208.18 Calcium, ppm 2,498.39 Very High Magnesium, ppm 880.78 Very High Sodium, ppm 174.21 Sulfur, ppm 4.80 Low Copper, ppm 0.52 High Zinc, ppm 0.38 Low Value Element (Mehlich3)
Date Received: 07/15/2014

Not sure what all this means but was told I didn't need to lime
But don't know if I need to fertilize