Koi in a pond with coins in it. The copper in the coins affects the blood cells and increases mucus production in the gills of koi, which makes it more difficult for the koi to breathe

Koi in a pond with coins in it. The copper in the coins affects the blood cells and increases mucus production in the gills of koi, which makes it more difficult for the koi to breathe - 121650018

Hasonló stock képek

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