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I think the kois were in good condition. We have a sufficient size pond: around 15'x22', 4-5.5' deep with a 3-part filter system. The kois are very active. Two of them are friendly. So, they eat more and are quite large (ginrin ochiba in picture). The other two are shy, and eat less. Even in the summer, we don't feed so much that food would flow into the skimmer.
I'll keep looking to see if there are other possibilities. |