At room temperature (around 72-75°F or 22-24°C), the incubation period is typically around 21 to 35 days. However, if the water temperature is higher, such as in tropical aquariums (around 78-82°F or 26-28°C), the incubation period may be as short as 10 to 15 days.
It's important to note that the incubation period can also vary among different guppy strains and individual females. Some guppy strains may have shorter or longer incubation periods than others, and individual females may also have their unique gestation patterns.
To ensure successful breeding and healthy fry, it's essential to maintain appropriate water conditions, including stable temperature, pH, and hardness, as well as provide adequate food and hiding spots for the female guppy during pregnancy and the fry after they are born.