First, how to identify goldfish female and male Kam.
The male sex fish has a sub-characteristic "chasing star", that is, there are several small white protrusions on the first rays of the gill cover and the pectoral fin. The female does not have this feature. When you touch the abdomen with your hand, it is the female that feels soft, and the male who has a harder feel is the male.
The ventholes of the female fish were pear-shaped and slightly outwardly protruding. The excretory hole of the male fish was thin and long-grained, the two ends were sharp, and the middle was slightly enlarged.
The male swims actively and actively chasing other goldfish; females swim slowly and are less responsive than males.
Second, how to choose broodstock.
Select broodstock, must be selected in the same kind of strong physique, uniform color, bright, the main features (such as blisters, pompoms, tiger head) obvious, gonad development maturity of 2-3 broodstock.
Third, how to care for postpartum broodstock.
The relatives of the broodstock just finished producing eggs and eggs are relatively weak. First, the female and male fish should be separately put into the “old water†rearing tank (cylinder, basin) with the same temperature as the original pool water, especially for the precious species. Divided. When the broodstock is removed from the spawning pool or later cleaned or replaced, it is necessary to remove it with a washbasin and waterfowl to ensure that the fish is not harmed. Strengthen nutrition, feed less and fine feeding, good palatability, and then feed on the normal standard when the broodstock is restored. Attention to injury, injury, broodstock in the spawning chase when it is easy to hurt the mucous membranes, skin, scales, should be promptly coated with mercury, disinfectant, soak the wound.
Fourth, how to control the discoloration of goldfish.
(1) Water temperature: In general, the higher the water temperature is, the faster the discoloration is, and vice versa. According to experience, 28-33°C is suitable for changing color temperature.
(2) Water quality: The use of well water, tap water, and river water, which are rich in trace elements, is beneficial to the discoloration and stability of the pigment cells of goldfish. The new water and green water are used alternately, and the discoloration is accelerated and the body color is bright.
(3) Illumination: In the process of discoloration, a certain amount of light is used to stimulate the body surface pigment cells of the fish, which is favorable for accelerating discoloration and bright color.
(4) Baits: During the critical period of discoloration, feed the nutritious bait, especially the animal (among which the zooplankton is the main) bait, and assist in feeding fishmeal, silkworm meal, etc. for red, gold, and blue The discoloration of goldfish is extremely advantageous.
The male sex fish has a sub-characteristic "chasing star", that is, there are several small white protrusions on the first rays of the gill cover and the pectoral fin. The female does not have this feature. When you touch the abdomen with your hand, it is the female that feels soft, and the male who has a harder feel is the male.
The ventholes of the female fish were pear-shaped and slightly outwardly protruding. The excretory hole of the male fish was thin and long-grained, the two ends were sharp, and the middle was slightly enlarged.
The male swims actively and actively chasing other goldfish; females swim slowly and are less responsive than males.
Second, how to choose broodstock.
Select broodstock, must be selected in the same kind of strong physique, uniform color, bright, the main features (such as blisters, pompoms, tiger head) obvious, gonad development maturity of 2-3 broodstock.
Third, how to care for postpartum broodstock.
The relatives of the broodstock just finished producing eggs and eggs are relatively weak. First, the female and male fish should be separately put into the “old water†rearing tank (cylinder, basin) with the same temperature as the original pool water, especially for the precious species. Divided. When the broodstock is removed from the spawning pool or later cleaned or replaced, it is necessary to remove it with a washbasin and waterfowl to ensure that the fish is not harmed. Strengthen nutrition, feed less and fine feeding, good palatability, and then feed on the normal standard when the broodstock is restored. Attention to injury, injury, broodstock in the spawning chase when it is easy to hurt the mucous membranes, skin, scales, should be promptly coated with mercury, disinfectant, soak the wound.
Fourth, how to control the discoloration of goldfish.
(1) Water temperature: In general, the higher the water temperature is, the faster the discoloration is, and vice versa. According to experience, 28-33°C is suitable for changing color temperature.
(2) Water quality: The use of well water, tap water, and river water, which are rich in trace elements, is beneficial to the discoloration and stability of the pigment cells of goldfish. The new water and green water are used alternately, and the discoloration is accelerated and the body color is bright.
(3) Illumination: In the process of discoloration, a certain amount of light is used to stimulate the body surface pigment cells of the fish, which is favorable for accelerating discoloration and bright color.
(4) Baits: During the critical period of discoloration, feed the nutritious bait, especially the animal (among which the zooplankton is the main) bait, and assist in feeding fishmeal, silkworm meal, etc. for red, gold, and blue The discoloration of goldfish is extremely advantageous.