Brown goldfish
Brown The bluegill goldfish (certainly introduced) has a pointed head, small eyes, and normal nostril membranes. What is special is that their gills are in a state of bluegills. However, do not think that they are sick. This is just a variation of goldfish. And it is arranged by genetic factors.
The gills in goldfish are a disease. The edges of the gill cover grow from the inside out, and some of the gill filaments are exposed, like a wound. However, its variation is also controlled by genetic factors and has no effect on the fish's respiration. During the fish disease stage, due to its long-term adaptability, it seems to be more resistant to disease erosion than ordinary operculum fish. Brown high-headed gills combine the two variations of high-headed and turned-branched gills into one. However, the gall should be high and the gill cover should be extended to a wide range of structures to be considered authentic.
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