is the life span of Dutch phoenix fish? The life span of Dutch phoenix fish is about 2-3 years. Because they are not resistant to drugs, once they get sick, they will be more troublesome, so they must be treated at the first time after they get sick, and if they are treated late, they will die early. The Dutch phoenix fish is a small tropical fish, which can grow to about 6-8 centimeters. Usually, a good growing environment can make them grow bigger. Therefore, the fish tank should have enough space for activities, pay attention to feeding bait regularly, and change water regularly to improve water quality, which are very helpful to the growth of fish.
For other common diseases caused by bacteria or parasites, changing water can reduce the density of bacteria and improve water quality, so as to avoid further deterioration of the disease. At the same time, it raises the temperature of the water, thus stimulating the fish's own immunity. In addition, adding salt to the water properly can prevent further invasion of bacteria by regulating osmotic pressure. Generally, the concentration of salt is controlled between one thousandth and three thousandths. Too high concentration will also affect the health of fish.