1. Fry stage: During this stage, the temperature of the water can be adjusted to about 32 degrees. Adjusting to a higher range, the metabolism of Luohan fish will be appropriately accelerated, which can promote their rapid growth.

2. Sub-adult stage: At this stage, it is best to keep the water temperature at 29 -30 degrees. Moreover, try to make the water temperature a little higher in the early stage of the sub-adult stage, and slowly decrease the water temperature in the later stage of the sub-adult stage.

3. Adult fish stage: After Luohan fish reaches adulthood, it is best to keep the water temperature between 27-28 degrees, not too high to slow down the rate of metabolism. If the metabolism is too fast, the lifespan of Luohan fish may be affected.