| ahhh, I see. Is this well water? If so we need an 'intermediary reading' so we can see the water from the well, after it is aerated ( but before the biology of the pond has at it) and finally the pH after it has been in the pond a while. It would have been good to know the pH After you found the fish dead, but I'm sure you had other things on your mind at that point.
In a perfect would I would also get a reading and therefore the nature of your KH at each point as well. JR |