Methods to increase the color of Luohan fish:

1. Genes. Understand whether the Luohan fish you raise contains the red gene. If not, it is almost impossible to increase the color later. If it does, use the color enhancement method.

2. Feeding. Shrimp can be fed to Luohan fish regularly. Shrimp contains a large amount of astaxanthin and rich protein, which can promote the color of Luohan fish. You can also feed Luohan fish artificial feed that helps increase color, preferably feed containing astaxanthin, and then you can also feed more mealworms, red worms and other foods in daily life, which can play a role in maintaining the body color of Luohan fish. Color enhancement effect.

3. Nutrition. Feed the Luohan fish regularly in small amounts and often to balance the nutrition intake of the Luohan fish, so as to prevent the Luohan fish from becoming malnourished and causing the body color to fade.

4. Lighting. Illuminating the Luohan fish for a certain period of time, preferably red light, can more effectively help the Luohan fish color. However, the lighting time should be appropriate, about 6 to 8 hours a day is enough.

5. Environment. You can put volcanic stones at the bottom of the fish tank as bottom sand. The red volcanic stones can not only adjust the acidity and alkalinity of the water environment, but also add color to the Luohan fish. Or change the background of the fish tank to red, which can fix the color.