My pond is 16 years old. It is shaded by an old oak tree. This year particularly when its warmer, leaves on the botyom float to the too making a kind of porridge. I have yesyed tha water. Ph 6.8, zero nitrates and amonia. We have no fish but insect life water boatmen dragonfly previously breeding are absent. A water lill has browning leaves.
Image attached.
Any ideas on cause and solution?
Regards
Bob Jones
Image attached.
Any ideas on cause and solution?
Regards
Bob Jones