Blood parrots are sensitive to the change of water temperature. When they grow in an environment with low water temperature and large changes in water temperature, they will lose their bright colors due to physiological reactions, and in severe cases, they will appear black stripes or stripes. However, fish that survive for a long time in low temperature environment are easy to get sick and even die seriously. Therefore, in order to facilitate its growth, the water temperature should be kept between 25-28 ℃ during curing. It has strong suitability for water quality and environment, and can survive well in weak acidic to neutral water quality, but it requires high cleanliness of water and sufficient oxygen. During the maintenance period, it is necessary to change the water every 5-7 days, and only one third of the water needs to be changed every time, so that it will not die. If it is completely changed, it will affect its growth.

It is hardly picky eaters and eats everything, so pay attention to the clean and hygienic food when feeding, and don't feed deteriorated food, otherwise it will easily cause its death. At ordinary times, some small fish and shrimp or feed can be fed properly to ensure balanced nutrition, so as to improve its resistance.

If you want the color of blood parrots to get redder and redder, you should keep the stability of water temperature. You can use a heater to keep the water temperature at about 28 ℃, which will make its body color more bright.