I have a koi pond in Toronto, Canada. The entire inside lining is covered by stones. I was told recently that I should not cover the lining of the pond (below the water level) with stones as it would allow bad bacteria to hide... is this correct... should I remove all the stones from the pond below the water level?
Posted on Jul 26, 2007, 5:29 PM from IP address 74.116.220.75