Your need to check the water quality - pH, nitrates etc.
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Jim and Sara Humphries, Victoria, BC
"MC" wrote in message
om...
Two of my Koi died last weekend and floated to the top. I am in
Chicago and have kept the ice from freezing over with airstones and a
heat source. I am wondering if they just got sick (they were covered
in slime) or if something in the pond caused it. The water is quite
brown from all the fall leaves. I tried to keep out as many as I
could, but a large number (realtive to pond size) got in. Next fall I
will cover the pond with netting. Could this have affected the fish or
does the water just look ugly to us?