All the flower, bird, fish and insect markets will have them.

Colorful angel fish eat red worms or thread snakes. Feed them once a day until they are full.

To raise colorful angelfish, you need to prepare fish tanks, filters, biochemical cotton, heating rods, fluorescent lamps, air pumps and other necessary equipment.

Fish tank: Generally speaking, a fish with 1cm needs at least 1 liter of water to be raised, so the fish has enough room to move. Too big or too small is not appropriate. It is suggested that the length, width and height of medium and adult fish ponds should be 120×50×45(cm) respectively, and the length, width and height of fish ponds should be 50×50×45(cm) respectively. These tanks are suitable for breeding, which can make rational use of space and facilitate management.

Air pump: colorful angelfish need a lot of oxygen, so it is very important to ensure that there is enough dissolved oxygen in the water. In practical work, the air pump should be selected according to the fishing ground area, the number of fish tanks and the number and size of fish. Domestic pumps are cheap; Imported pumps are expensive, but durable and almost noiseless.

Heating rod: the water temperature of raising colorful immortals is generally 28 ~ 30℃, which is difficult to meet all the year round under natural conditions. Therefore, it is almost inseparable to use heating rods, especially in the northern region, to raise colorful immortals. When choosing heating rods, you must choose products with reliable quality, and you can't boil the fish tank without heating or continuous heating because of faults. No matter what kind of heating rod is used, always observe the change of water temperature to prevent accidents. The water temperature of colorful immortals should be 28℃. If the temperature is lower than 28℃ for a long time, the immunity of the colorful angelfish will be affected, and parasites and diseases will quickly invade the fish and cause harm to the fish.

Filters: Filters are one of the necessary equipment for colorful culture. It is very common to use colorful filters, such as upward filtration, external filtration, barrel filtration, drip filtration, sponge filtration and so on.

The commonly used filter materials of general filters are: white filter cotton, biochemical balls, ceramic rings, activated carbon and sponge filter cotton (commonly known as water goblins) and so on.

Sponge filter cotton can be divided into wall-attached and vertical sponge filters. It adopts air-lift power, which has small water output and strong ability to cultivate bacteria. It is most suitable for small fish tanks such as breeding tanks and fry.

Lighting equipment: colorful angelfish has low requirements for lighting. Generally, a 40W light bulb is enough for fishing grounds15m2. However, a small light should be added to the culture pond as a ever-burning lamp, in order to avoid sudden electric shock of the switch, and also to help the larval fish attach to the cultured fish and prevent the big fish from hurting the larval fish. Specifications can be selected from 10~40w to 40w.

Thermometer: There must be an accurate and readable thermometer in the aquarium with colorful angelfish, and it should be placed in an obvious position, so that you can observe the change of water temperature at any time.

Oxygen device: colorful angelfish does not need high dissolved oxygen, and the fish tank should still have saturated oxygen at any time. The oxygen increasing device in the fish tank provides many functions, the most important thing is to ensure that the organisms in the fish tank can get enough dissolved oxygen, and at the same time, it can prevent the water temperature in the fish tank from stratification. Therefore, the foam stone should be placed near the heating device, so as to ensure that the heat source can be evenly dispersed to all corners.