When Heilan Shou does not eat, it may be because of the following reasons:

1. It is better to keep the water color of Hei Lan Shou in emerald green, so that the fish can be seen. In principle, when the water color is too thick, it will have a bad impact on the fish, and it is easy to not eat;

2. Too high concentration of green algae will affect the respiration of Heilanshou's gills, and may not eat at this time;

3. Don't give Heilan Shou feeds poor quality fish feed, which is too starchy and can easily make it sick.