How can guppy inbreeding and how can we control sex

There is no problem in inbreeding guppy within 3 generations, because inbreeding within 3 generations will ensure the purity of the variety and retain the characteristics of the parent fish. However, guppies have more than three generations of close relatives, which may lead to their genetic degradation, resulting in problems such as small offspring, weak and sickly offspring, and gradually declining characteristics. But this is only for offspring produced by the same male and female pair, which would not happen if the female fish and other fish reproduced.

1. How will guppy inbreeding happen

There is no big problem in guppy inbreeding within 3 generations. On the contrary, breeding within 3 generations can ensure the purity of guppy varieties. In addition, inbreeding can also retain the characteristics of parent fish, which makes the characteristics of parent fish more obvious in offspring.

But if guppies are inbred for more than three generations, they will have genetic degradation. For example, the offspring will become larger and will not grow up in adulthood. In addition, the offspring may have poor physique and sickly health. If it is serious, it may be stillborn.

2. How can guppies control their sex

Guppies are oviparous fish, and their offspring are uncontrollable in sex. Under normal circumstances, the proportion of male fish bred by guppies is small, generally only accounting for one third of the total number. The proportion of female fish is large, accounting for two-thirds of the total water volume. If only by artificial means, it is impossible to accurately control their gender.

Although it is impossible to accurately control the sex of guppies, breeders can control the sex of their reproduction by water temperature. If you want to breed more male fish, you can raise the water temperature to above 26 ℃. Higher water temperature can increase the probability of breeding male fish.