How to breed guppies
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When choosing a male, you should choose a bright-coloured body with a robust body and a tail shank that will chase the female fish back and forth. When selecting females, we must pay attention to the morphology and color of the tail fins, and all of them can show the characteristics of the varieties. It is best that the female who has already produced the next larvae has an abdomen that is bulky and dark, which is ideal.
Second, the breeding of broodstock
When the fertilized egg of the female fish matures, the abdomen will bulge, and the lower abdomen will expand and darken. This is called the "pregnancy state." When the female swims upstream and downstream next to the aquarium, when abnormal actions occur, it is the precursor to the birth. At this time, it can often be seen in the female lower abdomen with juvenile fish and its large eyes. In this case, it is better to keep the males separately to avoid the male chase and consume physical power. After confirming that the female fish is fertilized, the males are separated and fed separately. When the calving period approaches, the females are placed in a spawning or spawning box dedicated to spawning. Healthy females are about 21 to 25 days old for a reproductive cycle, about 10 for the first time, about 20 to 30 for the second, about 30 to 50 for the third, and about 100 for the first time. Female fish. Special aquariums or litter boxes for litter production should be filled with aquatic plants to create an environment conducive to the birth of females. Prosperous plants are the best hiding place for juveniles, so that they do not accidentally eat larvae. The farrowing box is best placed on the day before the expected date of production. After finishing the farrowing, the mother fish should be removed immediately to keep the space filled. After the farrowing is over, the mother fish should be fully rested in other aquariums and carefully consider whether or not to let the females re-grow, so as to avoid excessive fish in the aquarium and inconvenient management.
Third, juvenile fish feeding and selection
The conditioning of the juveniles after their birth is very important. Juveniles born a few days later can feed the harvested shrimps. The best number of baits is three times in the morning, evening and evening. After the first week of juvenile fish, the feeding amount of freshwater shrimp increased accordingly. Feed it three times a day. After the third week, the females had strong feeding habits and could feed artificial diet or chopped pods, and the growth rate would be doubled. In addition to paying attention to nutritional balance, we must also avoid deterioration of water quality. A few drops of methyl blue can be added to the aquarium to achieve the disease prevention effect.
Juveniles can distinguish between male and female about three weeks after they are born. From the body type, the males are judged from the spots on the base of the caudal fin, and the females are distinguished from the black spots in the lower abdomen. If there is malformation, dysplasia, or a disease on the front of the caudal fin, treat it early. After about two months of development, the color of the guppies is quite stable and their tails are large. At this time, care must be taken to ensure that the guppies will become the fish of the broodstock. If the fish is found to have a large body, a small caudal fin, asymmetry in the whole body and a neutral phenomenon, it must be dealt with immediately. The size of males and females is roughly the same during this period. After three months, the females are usually larger than the males. After the farrowing females will be larger than the males. After repeated rigorous screening and elimination, about four months of age can be selected to breed a parent, giving birth to the next generation.