"t" wrote:

Several years ago I built a 100 foot long stream (actually a pool/pond)
powered by a Sequence pump. It is approximately 3-4 feet wide and 4-12
inches deep. The bottom is covered with a multi-colored river rock. Over the
years dirt/mulm has coated the rocks. When I was pulling up my overgrowth of
cattails, the rock was disturbed and the overturned rock showd the shades of
white/cream/brown/black that it had when I installed it.

I know it is a natural process for this to happen, but does anyone have any
ideas on how to clean the river rock?

Thanks


You could just turn them "upside down" to reveal the colors, but I think
you'll just have algae coated ones again shortly.


San Diego Joe
4,000 - 5,000 Gallons.
Koi, Goldfish, and RES named Colombo.