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Well...the toll is now up to 4 fish, and number 5 is on the way. It has only been big fish...as the smaller ones are eating and doing fine. The big ones are staying right under the waterfall. When I examined the gills of the dead fish, they were the usual reddish color with areas that appeared bleached white...almost chaulky. I have only measured the oxygen levels at the surface...I imagine they are much lower at the bottom. Over the last month, the warmer it got..the less they ate, and the worse they looked. This really stinks!!!
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