Water quality is the most important thing when raising fish. The water quality of betta fish must be clean, otherwise it is easy to cause them to have various diseases. Because of the limited conditions, most of the betta fish raised in families are raised with tap water. However, it is well known that there are many toxic substances in tap water, such as chlorine and nitrous acid, which are harmful to betta fish, so it is necessary to aeration when using tap water.

Generally, it is best to raise betta fish with well water, because well water contains many beneficial substances for betta fish. In daily life, in addition to clean water quality, betta fish should also pay attention to the pH value of water. Betta fish generally like neutral water, so the pH value should be in the range of 6.5 to 7.2.

Betta fish are tropical fish in nature, so when raising them, the water temperature must not be too low, and the most suitable temperature for their growth is between 24 ℃ and 27 ℃. When betta fish are still seedlings, at the right temperature, they will grow very rapidly and metabolize much faster than at other temperatures. Although betta fish is tropical fish, it will not die even at very low temperature, and it is relatively cold-resistant. To sum up, in daily life, we should pay more attention to water temperature, water quality and pH value when raising betta fish.