From my education I know that the first cm or so is the most active part of a pond bottom. I know that all of the traditional management trends say that lime is the best way to control the PH of the water but not all of the lime is dissolved. Much of the lime settles to the bottom. What kind of effect does this have. I have considered using soda ash which is completely soluble and controls the PH just as well if not better than lime.

PondMD