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more info, there is a wooden bridge over the pond, koi hide under the bridge during the day.
The pond is getting air from a 40l and a 80L airpump, plus a waterfall and stream. So, there should be enough oxygen in the water.
BTW, when I get to the last pallet of the Ogata staple, I found quite some dead bugs in the residual. I should have paid more attention to the food, but the food was supposed to be some new shipment thing.
other than beni, everything looks OK, no wound no flashing. No koi have been treated for a long time, (5 months +).
stan
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