A customer of Baolong Company gave a100,000 yuan jewel arowana, which was kept for two months and found that it was not very red ... What would turn red if I ate it?

Red dragons are generally colored by shrimp, and the color loss of arowana is generally divided into three reasons. One is that the weather is too hot and the color fades, but it will slowly recover. One is that the water quality does not adapt to fading, which can also be restored. The other is the red dragon raised with pigments in order to make money. After buying it back, this red dragon damaged the pigment food, so the color faded badly, and the deep red turned into light red, which could never be recovered. Generally speaking, arowana colored with this pigment is about 30 cm in size.