Two day now without a fish dead that I can find. Well water still on but pond is nearly full and will have to be shut off tomorrow. I am so sorry to have to plead ignorance on this, but what does "DO" crash stand for? I tried to find it in abbreviations section but could not even find that. Sorry bout that, thanks for the input!
Dissolved oxygen. Do you oxygenate your well water prior to adding it?
