Feeding method of anchovies
Anchovy is a kind of tropical fish which is relatively easy to raise. The requirements for water quality and temperature are not too high, and its adaptability is also very strong. When the water temperature is above 18℃, it can survive completely. It doesn't need to be heated all winter, but it just doesn't like swimming very much. However, when changing water, attention should be paid to keeping the temperature of new water consistent with that of old water. This fish is small in size and gentle in temperament, so it is best not to mix with other kinds of fish.
Food: red nematodes, Daphnia and dry feed can be used.
Disease prevention: when changing water, pay attention to keep a certain proportion of new water and old water. Unless the water quality deteriorates, all water can be replaced. When all water is changed, as long as the temperature difference between the old and new water is controlled not to exceed 5℃, you will not get sick.
Treatment:
(1) Raise the water temperature appropriately.
(2) Use chlortetracycline at 12.5 ppm (12.5ppm) or oxytetracycline aqueous solution at 25ppm for 30 minutes; You can also use one millionth (1ppm) of bleaching powder or two to four millionths (2 ~ 4ppm) of gallnut to splash it in the aquarium for disinfection treatment.
The female anchovies are big and full, while the male anchovies are small and thin.
You can lay eggs once a month in summer after the adult fish. When the abdomen of the female fish bulges, it means that it is necessary to produce fish. Generally, it is about 20 days pregnant. You can put the female fish in a small jar alone, because the female fish may devour her children. After the fish is finished, you should raise the small fish alone. The anchovies don't know their relatives and often inbreeding, so you can ignore it, but it will affect the quality and quantity of the next generation of fish.
Morphological characteristics of anchovies
Small in size, long and flat on the side, tapering backwards, quite like a knife. The snout is short and slightly rounded, with a large mouth, lower position, oblique mouth crack, light green back, silvery white side and abdomen, and the body is covered with large and thin round scales, without lateral lines. The six fins in front of the pectoral fin are extended, free into filaments, and the gluteal fin is large and connected with the caudal fin.
Chongming anchovies are delicate and nutritious. Braised anchovies are attractive in color, tender and delicious in meat, which makes people's appetite double; The fried anchovies are crispy and delicious, and they are the best in the banquet. Canned anchovies are exported to foreign countries, which are favored and in short supply. String the anchovies one by one, and after drying them in the sun, they can last for a long time. Steamed dried anchovies are fragrant, delicious and refreshing, and can stimulate appetite.
The fish has a slender figure, a flat back and a very beautiful tail, and the size and color of the fish are quite different between male and female. The male fish is thin and thin, with a body length of 4 ~ 5 cm. The dorsal fin is long and pointed, and the caudal fin is wide and long, accounting for about the whole length.
More than half, the tail stalk is long and higher than the tail stalk. According to the shape of its tail fin, it can be divided into early tail, lower sword tail, double sword tail, piano tail, needle tail, round tail, flag tail, fan tail, triangular tail, cut tail and pointed tail. Its body, dorsal fin and caudal fin are colorful, mainly including red, blue, black, yellow, green, tiger skin and variegated colors. Some male fish have small blue-black spots on their tails, like peacock's tail feathers, hence the name. The female fish is stout: the body length can reach about 7 cm, and the body color is dim, fleshy and slightly transparent, and the color of dorsal fin and caudal fin is much inferior to that of male fish.
Peacock fish is the most common and favorite fish in tropical fish. It is small and exquisite, lively and active. The male fish is about 4~5 cm long, and its tail handle and tail fin account for about 2/3 of its length. The female fish can reach 6 cm in length, and its tail stalk and fin account for more than 1/2 of the whole body. The male fish is colorful, including red, orange yellow, green, cyan, blue and purple, and the key colors are light red, light green, light yellow, red, purple and Kong Quelan. There are blue-red spots on the tail fin and abdomen, and there are light-colored rings around it, which are like peacock tail feathers, so it is named after it. The dorsal fin is short and high, and the caudal fin is wide and long, and it has various shapes such as piano tail, round tail, upper sword tail, lower sword tail, fork tail, square tail, torch tail, tooth tail and big tail.
The body color of female fish is much inferior to that of male fish, and most of them are single silver gray. Although there are some patterns on the tail fin, they are not as bright as male fish. The fins of female fish are shorter than those of male fish, but their body length is about twice that of male fish. Life habits of anchovies