Shenxianyu digital currency
if there is a lot of money, the cheapest one is 2 yuan for swallow fish, and there are dozens or hundreds of them.
if there are seven colors, the smallest one is more than 10 yuan, which is the size of a dollar coin.
Generally speaking, "fairy fish" includes four original species, namely, P. sccalare, P. eimekei, P. merilii and P. altum. Among them, fairy fish and Yin Yang fairy fish can be hybridized, and the body shape of fairy fish is very similar to that of Yin Yang fairy fish, Only one species of Egyptian fairy fish has established its status in biology, while the other three species are still to be determined by detailed investigation. Up to now, there are many improved species of fairy fish. The original species of fairy fish is sensitive to water quality and difficult to breed. However, the improved species do not have this phenomenon, and ordinary people can easily mate artificially
shenxianyu
shenxianyu is also known as swallow, angel fish, etc. it is also known as swallow e to its swimming and flying like a swallow. Fairy fish is elegant, so it was once loved by aquarium lovers, so that now fairy fish is almost synonymous with tropical fish
Chinese scientific name: swallow
Kingdom: animal kingdom
subphylla: Chordata
distribution area: sea
genus: ichthys
Latin scientific name: common Angel Fish
phylum: chorda
< P > class: phylum Bony fish classnickname: swallow, angel, fairy fish, small fin sailfish
family: LiCo
After years of artificial improvement and cross breeding, there are many new species of fairy fish. According to the length of caudal fin, it can be divided into three strains: short tail, medium long tail and long tail; According to the pattern and color change of fish body, it can be divided into many kinds, which are common in China: white fairy fish, black fairy fish, gray fairy fish, dolomite fairy fish, semi black fairy fish, mandarin ck fairy fish, three color fairy fish, golden head fairy fish, glass fairy fish, Diamond Fairy fish, panda fairy fish, red eye fairy fish, etc, Recently, the Egyptian fairy fish, which is popular abroad, is rare in China
Egyptian fairy fish: the body color is mainly silver gray with yellow, the yellow on the back is deep relative to the abdomen, there are 4 or 5 black vertical stripes on the side, the forehead should be slightly raised, the mouth should be upturned, the dorsal fin and caudal fin are very long, as shown in the following figure
native to the Amazon River of South America, belonging to Cichlidae. The length of the body is 10-15 cm. The head is pointed, the ventral fin is two long silk fins, the body side 3 ~ 5 black vertical transverse band, like zebra stripes. The water temperature is 22-26 ℃, the water quality is weak, the acid water is soft, and the t is mainly worm fish. The breeding water temperature is 26-28 ℃, and the sexual maturity of the parent fish is 6 months. The male fish is large, with arc-shaped head, slightly raised, and long fins. The head of the female is smooth, and the eggs are laid on magnetic plates, 300-500 eggs per time.