Yep, I missed it.
A pH of 6-8 is desireable for ponds. Lower or higher presents its own problems. Richmond Mill Lake has a thriving fish population, but when we introduce fish, we've had to work at it. For a pond, alkalinity is important, if you wish to fertilize and work to create a "natural" food chain. Richmond Mill is mostly dependent on fish food, because of the water quality and the fact that it flows 6-9,000 gallons per minute over the spillway.
