1. Feeding correctly: The key factor of Lanshou goldfish ink is feeding. They are different from other fish in hair color. They need green moss or green algae to promote ink output. Breeders can also choose some color-enhancing feed of green algae, so that they can increase their ink output probability. In addition, you can also feed more animal feed, which can make their body color more bright.

2. Sunbathing: When raising Lanshou goldfish, it is best to sunbathe them every day, which can effectively promote their ink production. If there is no sunlight indoors, aquarium lamps can be installed instead of sunlight.

3. Maintain water quality: If you want Lanshou goldfish to produce ink, you should raise it with light green water, and the breeder should keep it as light green water for a long time, so that they can produce ink better.

After the ink comes out of Lanshou goldfish, the breeder should regularly feed them some colorful feed or animal feed, so as to keep their body color bright all the time.

Attention should also be paid to the stability of water temperature and water quality, and try to avoid excessive temperature difference or sudden change of water quality. In this way, they can avoid discoloration.

Pay attention to disease prevention. Lanshou goldfish will have dim body color after getting sick. Breeders should treat the disease in time to avoid getting too serious and affecting their body color and health.