The yellow-tailed blue devil is a difficult fish to keep. You can take a look at the following points.

1. Water temperature: it should be kept between 26-27℃, and the temperature can be appropriately increased during the breeding period. Below 15°C, heating is required.

2, Water quality: The most suitable water quality for the growth of yellow-tailed blue devil is alkaline soft water, and the pH value should be controlled between 8-8.5. During the breeding process, care should be taken to keep the water quality clean. Generally speaking, the water should be changed once or twice a week.

3. Feeding: During the breeding process, fish, worms or earthworms can be fed, and shrimp and fish feed can also be fed. But you need to pay attention to the feeding amount. Because the yellow-tailed blue devil does not know whether to be hungry or full, it is necessary to control the amount of feeding and not feed too much.