How big a fish tank is used for colorful fairy fish? It depends on their size and quantity. Colorful fairy fish belongs to medium-sized fish, and its body length is about 20 cm after adulthood. Under normal circumstances, an adult colorful fairy fish needs a 40 cm long fish tank. If it is a minor colorful fairy fish, 2-3 fish can be raised in a 40 cm fish tank. If breeders want to raise more colorful fairy fish, they should choose the size of the fish tank according to their number. In addition, keep the density of immature colorful fairy fish small, because their size is constantly growing, and the space needed will be larger and larger.

1. Water temperature: Colorful fairy fish is tropical fish, which likes a higher water temperature. When raising artificially, it is necessary to keep the water temperature between 28-30 ℃. They are also sensitive to the change of water temperature. If the temperature difference exceeds 2 ℃, they will feel uncomfortable. It is best for breeders to install a heating rod to keep the water temperature constant.

2. Water quality: Colorful fairy fish also have high requirements on water quality, and like to live in weakly acidic water. Breeders need to keep the PH value between 6.0 and 6.5. Moreover, they also like clean and refreshing water quality, and breeders need to change water every 3 days or so. Because they are also sensitive to the fluctuation of water quality, the amount of water changed each time should not be too large, and it can be controlled at one third of the total water quantity.

3. Feeding: Colorful fairy fish prefer live bait, but live bait is easy to carry parasites and bacteria, so breeders can feed it in moderation. At ordinary times, prawns, red worms, bread worms, Tenebrio molitor, etc. can be used as staple foods, and some plant feeds or synthetic feeds can ensure their adequate nutrition.