this is it. The name is on the picture. It's a Lily fish.

the scientific name of lili is lali hairy-footed bass (Colisa? Lalia), a relatively small member of Anabantidae, is the most outstanding, so it is called Xiaoli fish. Other nicknames include small perch, perch and peach pit fish, and its English name is Duarf? gourami? (gnome Latin America) and Honey? gourami。 Lily fish is native to India and Bangladesh. Local natives often keep them in aquariums to watch. In 193s, there was a craze for raising Lilian fish in Europe and America. The main reason was that the color of this kind of fish was wonderful and pleasing to the eye, especially when there was a wedding color in the breeding period, it was bright and unparalleled, which made tropical fish lovers love it at first sight and became a favorite tropical ornamental fish. First, the morphological characteristics < P > Lily fish is oval and flat on its side. The head is of medium size. The mouth is small and upturned. The eyes are large and located on the side of the head. The dorsal fin is long, its starting point is less than the distance from the snout to the caudal base, and its back end is pointed. The gluteal fin is almost as long as the dorsal fin. The pectoral position of ventral fin has evolved into filiform horn whiskers, which is close to the body length. The pectoral fin is small, colorless and transparent. The caudal fin is fan-shaped and the end is slightly concave. The male fish is 6 cm long and the female fish is 5 cm long.

Second, the breeding method in the aquarium

Lily fish often sticks its head out of the water to swallow air, and then quickly swims into the water to spit small bubbles. This kind of tropical fish is kind-hearted, but timid, especially in the first few days when they are put in a new aquarium, if they are not forced by hunger, they often hide in the corner and don't come out to feed. When people approach, they will immediately swim to all corners of the aquarium to find refuge. Because of timidity, Liliyu likes to live in the gap and behind water plants and stones, and is afraid of strong light, and often hides in the dark. Therefore, the aquarium must plant more aquatic plants or big grass, which can provide them with suitable hidden places and reduce the fear that the fish often suffers. Lily prefers to live in hot water, so the aquarium needs to be placed in a place where the sun shines slightly.

This kind of fish is not strict about water quality, but prefers clear old water. The suitable water temperature is 18 ~ 3℃, and the optimum growing water temperature is 23 ~ 26℃. Don't be critical of bait, don't choose food, you can feed it with dry feed and live bait.

Lilium brownii is mild and can be mixed with other same tropical fish. When the outside world is quiet and there is no interference, the fish will swim from the bottom to the surface and make a "snapping" sound when swimming. In fact, there is little oxygen in the water, and it absorbs less oxygen in the water, mostly relying on the auxiliary respiratory organ maze on the gills. Organ) change the gas so as to breathe oxygen directly from the air on the water surface. Therefore, it can live well in water with low oxygen content, or when the fish is lifted out of the water, it can survive as long as the time is not too long.

Third, male and female identification

The male fish is larger, with red, blue and green as the main colors and orange as the contrast. Its throat and abdomen are also bright blue-green. The head is orange, with a red eye circle embedded in black eyes, which is particularly divine. The upper part of the gill cover has a bright blue with irregular edges, and it is a wide horizontal stripe of red and blue from the end of the gill cover to the base of the tail stalk. The dorsal fin, the anal fin and the caudal fin all have red edges, and the fins are also decorated with red and blue spots. The end of dorsal fin is sharp.

The female fish is petite, and its body color is not as beautiful and dark as that of the male fish. It is often silver-gray, but it is also dotted with colored stripes. Each fin is shorter and lighter than the male fish, but it also has a red edge. The distal end of dorsal fin is blunt. Abdominal distension during sexual maturity.

IV. Breeding methods

Because Lilium davidii has the organ of gametophyte, which is one of the main reasons why it is easy to raise, and it also has the breeding habit of nesting and caring for offspring, artificial breeding is not difficult. The methods are as follows:

1. Selection and culture of parent fish

When the fish is 5 cm long, it can be selected as parent fish. Parent fish should choose individuals with good body shape, sound development and bright colors. Carefully selected sexually mature parent fish are raised separately according to the ratio of male to female = 1: 1, and carefully cultivated. The measure is to raise the water temperature in the original fish tank by 1 ~ 2℃, then feed them with fresh bait for 7 ~ 1 days and put them into the breeding box.

2. Preparation of breeding box

The specification of breeding box should be 4×3×3 cm. In addition to densely planting some aquatic plants in the box, some floating aquatic plants should be put in order to make the lilies spawn and reproduce smoothly, so as to provide building materials for the fish to build their nests. The upper ends of the stems and leaves of aquatic plants must be connected with floating aquatic plants placed on the water surface, but a part of space should be left in the center and the first half of the breeding box to provide a place for fish to move. It is best to fill the breeding box with old water, and Lilium davidii is most comfortable in old water. The water quality standard of the breeding box is: pH 6.5 ~ 7.5, hardness 1 degrees, water temperature 25 ~ 27℃.

3. Building a bubble nest

Lilian is a tropical fish that spits bubbles and nests. It likes to build ovaries in a half-dark place, and the job of building a bubble nest is undertaken by the male fish. After the male fish enters the breeding box, he chooses a position to build a bubble nest. The nest is built bit by bit with spit. It is usually built next to a blade of aquatic plants floating on the water. Its nest is not very wide, the size is about 6 ~ 8 cm in diameter and 1 ~ 2 cm in height, and the whole nesting work will last for 1 ~ 2 days. Whenever the male fish builds a bubble nest, the male fish will drive away the adjacent female fish, while the female fish quietly hides in the dark corner of the box. For the built nest, if the male fish feels that the light is too strong, it is often abandoned. Therefore, the breeding box should be placed in a dark place.

Although Lilium davidii has the reproduction method of the mystery fish (but it is not the same), the difference is that the structure of its spitting nest often contains some aquatic plants, green algae and other dregs in the water, so its hatching nest is dirtier than that of other mystery fish, but this spitting nest is firm and not easy to be dissociated. When the male fish is in estrus, he not only plays the role of nesting, but also chases the female fish. If the females at this time have a good impression on their spouses, they can also help build nests. Under normal circumstances, it is best to introduce the parent fish into the breeding box together before the male and female fish are really in estrus, let them get along with each other for a while, and feed them with live bait, so that the female fish can naturally cope with her spouse's estrus chasing behavior in the future and avoid being pecked by an acute spouse.

4. Mating and spawning

Because Lilium davidii can breed smoothly in clean old water, adding one third of dried fresh water after putting it into parent fish can often play a good role, and it is more ideal to use distilled water with low hardness. At the same time, turn on the electric heater to keep the water temperature at 28 ~ 3℃.

After the male fish has built his nest, he starts to chase the female fish for courtship, but Lilian is not so single-minded in love. If more than two female fish are put into the breeding box at the same time, then the male fish will pay attention to all the female fish. However, because the male Calligonum has the instinct to choose his own mate, he only chooses one female fish to mate with and breed offspring in actual spawning.

When a male fish chases a female fish, both male and female fish will have a gorgeous "marriage color" that they can't see at ordinary times, especially the male fish, whose red is more brilliant, blue is more brilliant and shiny; The female fish's body color is far more gorgeous than usual, and there are some parallel vertical red stripes on both sides of her body, but overall, the brightness is still inferior to that of the male fish. Due to the chase of the male fish, the female fish is lured to mate under the nest, and the male fish bends, hugs the female fish, and ovulates and ejaculates close to each other. Most of the eggs are laid around dawn. The fertilized egg is small and soft, and its color is yellow and transparent. The fertilized eggs hatch in the bubble nest, but those that do not sink to the bottom of the box will be immediately picked up by the male fish and sent to the bubble nest. Oviposition is repeated many times, and the whole process lasts for several hours. Each pair of parent fish can lay 1 ~ 2 eggs each time. After spawning, the female fish should be fished out and moved to another aquarium, because the ungrateful male fish sometimes attack the female fish after spawning. At the same time, a small amount of penicillin aqueous solution or methylene blue solution should be added to the aquarium to achieve the purpose of disinfection.

5. Protecting eggs

Male fish are left to look after the eggs, which are usually surrounded by males all the time, and the pectoral fins are constantly slightly fanned around the eggs to make the eggs absorb dissolved oxygen. When individual fish eggs fall from the nest, it will immediately send them back to the nest with its mouth. If the bubble nest is found to be damaged, it will immediately repair the damaged place.

Although Lilium davidii has a fan to assist the respiratory organs, it is still necessary to ventilate the breeding box with an inflator. In this way, in addition to oxygenation, it is also conducive to water circulation to make its reproduction smoother.

6. Raising seedlings

Generally, fertilized eggs can hatch into larvae in about one day, and the larvae are small and dark brown, so it needs careful observation. Some larvae are hung on the nest and aquatic plants with their heads up, some are hung on the wall of the aquarium, and some are lying on the water with their bellies up. At this time, the male fish should be fished out to prevent it from treating the larvae leaving the nest as fish eggs and sending them back to the nest with its mouth. After about 3 days, the larvae can swim freely and seek food from the outside to satisfy their hunger. Egg yolk and Brachionus rotifer (Brachionrs? Sp), feed half a teaspoon of drained Brachionus once a day. After the second week, feed the screened Moina or brine shrimp once in the morning and once in the evening. In addition, when the small fish can swim freely, the male fish should be isolated, because when the small fish meets the enemy, the male fish will devour his offspring. If there are too many larvae hatched at one time, they can be raised in separate tanks. Never fish with nets when they are separated. It is best to scoop up the fish with water with a spoon and then put them in another tank, so as to avoid hurting the larvae.

During the young period, especially when the gametophyte tissue is still growing, the young Calligonum usually dies because of swallowing the cold air on the water surface, so it needs careful care. When the small fish will eat the naked-bellied fleas and saltwater worms, their growth rate will be very fast, and their bodies will gradually grow, and the mortality rate will be reduced. Generally, the mortality rate of the small Lily fish is very high within two weeks after birth, so careful care should be taken. ?

7. Growth

Lily fish grows slowly, but most larvae can grow up to 1 cm a month as long as they are given enough feed. And often change about a quarter of the water.

this kind of fish is sexually mature in about 6 months and can reproduce several times a year.

The stereotypes of Lilium davidii include: purple Lilium davidii, red Lilium davidii, gray Lilium davidii, golden Lilium davidii and so on.