It is best to keep the water temperature between 25-30 ℃, because their most suitable growth temperature is between 25-30 ℃. In this temperature range, their activity is the highest, and their metabolism and growth speed are also the fastest, so their growth state is also the best. If the breeder has the conditions, it is recommended to install heating rods to keep the water temperature constant.

Yuanbao parrot fish is a tropical fish and likes higher water temperature. If they live in low water temperature, they will have reduced activity and loss of appetite. Although they like higher water temperature, too high water temperature can also make their bodies uncomfortable. Therefore, it is most appropriate for breeders to keep the water temperature between 25-30 ℃.

The best PH value of parrot fish is 5.5-6.0, and they like to live in weakly acidic water. Because living in weakly acidic water can not only improve their activity, but also make their body color become more vivid. When cultured artificially, the PH value can be adjusted to the range suitable for their growth.

Since most tap water is weakly alkaline, breeders can add some acid regulators before using it, which can make the water weakly acidic. If breeders are worried about the effects of chemicals on the ingot parrot fish, they can put some olive leaves in the water, or make the water weakly acidic.