10-120 fry per spawn (for the first spawning, it's 10-80 fry, and for subsequent spawnings, it can reach 80-120 fry)
Guppies have relatively strong reproductive abilities. However, the specific number of fry they produce is affected by factors such as the age of the female fish, the number of pregnancies, their body size, and environmental conditions. Based on comprehensive and highly authoritative search results, the main information is as follows:
1. Range of the number of fry produced
First spawning: Usually, 10-80 fry are produced. For younger individuals, it may be as low as 10-20 fry.
Subsequent pregnancies: Starting from the second pregnancy, the number increases significantly, and it can reach 80-120 fry per spawn. Some female fish with strong constitutions can even produce 120 fry in a single spawning.
2. Key influencing factors
Body size and age of the female fish: Larger and mature female fish (such as those 3-5 months old) produce more fry and of better quality.
Environmental conditions: Suitable water temperature (26-28°C), stable water quality (pH 6.8-7.4), and sufficient nutrition can increase the number of fry produced. If the environment is harsh (such as poor water quality and insufficient food), the reproductive cycle may be extended to 30-35 days, and the number of fry produced will decrease.
3. Reproductive frequency and lifespan
Reproductive cycle: Approximately once a month, and they can reproduce about 11 times throughout the year. Their lifespan is usually 1-3 years (it can be longer under artificial breeding conditions).
Spawning speed: When everything goes smoothly, it only takes about half an hour to complete the spawning. If the fish are frightened, it may be extended to half a day.
4. Precautions
Isolate the fry: After spawning, the fry need to be raised separately to prevent them from being eaten by adult fish.
Optimize the selection of breeding fish: It is recommended to pair female fish that are 3.5 months old with male fish that are 2.5 months old to improve the quality of the offspring.
Conclusion: Guppies have outstanding reproductive abilities. However, only through scientific management (such as controlling the breeding density and providing live food for nutrition) can we achieve a high yield of healthy offspring.