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What happened to the white crown helicopter?
Fish white spot disease, water quality problem.

1. White spot disease of fish: White spot disease is one of the common diseases of ornamental fish, which is caused by parasites. It will produce white papules, white particles or white spots on the fish surface, accompanied by abnormal behavior, loss of appetite and other symptoms.

2. Water quality problem: Water quality problem is another reason that leads to the whitening of ornamental fish, which usually includes too high or too low water temperature and too high chemical substances such as ammonia and nitrate in water quality.