Pond Boss Forums MANAGING AN EXISTING POND Evaluating and adjusting fish populations Georgia Giants, Should you buy them?

SCSCUBA1: Using 15 lbs of hydrated lime in an 1/3 ac pond with a pH of 6.3 should not cause problems. Did the water chem guy do an alkalinity test for you? If your water has a decent amount of buffering which it probably doesn't then 50 lbs in a 1/3 acre should not kill fish. Before adding more hydrated lime go to a swimming pool place and buy one of their pH test kits. Use it to test for pH increase as you add the lime in increments of 15 to 20 lbs.

I assume that you plan to fertilize your pond. If you don't plan to fertilize your pond a pH of 6.3 will still grow fish if they are regularly fed fish food.