Quote:
Originally Posted by Pondboy
Not necessarily, but not out of the question.
The most likely explanation is a “ Pond Turnover”. Basically, this is when super cooled water from a thunderstorm falls on a body of water, that super cooled water quickly sinks to the bottom of a pond and forces that oxygen depleted water to rise, that water rises to where the fish are and in a matter of moments, the fish suffocate.
They die, sink to the bottom and a few days later their swollen bodies float to the surface. After a few days, they sink back down and decay on the bottom of the pond.
Normally, the bigger fish die (vs the small ones) as they need more oxygen.
This is typical of late July / August. Bubblers and fountains do help prevent this from happening.
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As far as the article and decaying organic matter….thats a stretch, not sure where they got that info.