Thanks Graham
Dealt with cyno (bga) in our aquariums - this algae is not the same in texture - more like single cell green algae. It's been a few years since we wintered koi outdoors so trying to remember little details about such things, but I've never seen this in ours or any other pond locally.
Thus far one water change has been done to my knowledge, sometime after the pond owner visited with Eugene, I was hoping more would have been done. She still has not seen the fish. Crappy weather today, sleet and snow so mr. winter is still hanging on here in Ontario.
Eugene, your advice to her was the same as mine - lets hope that reinforces the situation
Mr. Benbow, thank you for your thoughts. Plans are in the works to get the pond owner better filtration and discussion is taking place on how best to winter the pond so the system will be run 12 months a year.. with in her budget mind you.
Kind Regards,
Terri