Hi I woke up this morning to find one of my koi listing sideways. Algae and water hyacinth have turned a whitish color and we are wondering if acorns dropping into the pond have changed the chemical balance of our pond.
I'll echo what gardengimp said...algae and water hyacinth turning a whitish color in a short time, like a day, to me is the sign of a chemical like peroxide, chorline, copper. When algae and water hyacinth die back by natural causes the color change is slower and it goes thru browns and greys. White is the color bleached out.
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