Average is 28 days.
Normally about 4 weeks. But it can be shorter or longer! The average guppy reproduces once a month.
The length of the incubation for the bullfrog is about 4 days or less.
Basically a month. (Anywhere from 4-7 weeks)
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28 days
Male 1.5 inches. Female 2 to 2.5 inches.
The Gravid female will have the dark "gravid spot" in front of her vent. I can however assure you that if there has been a male in the same tank with a female guppy for any reasonable length of time she will be gravid.
If the fish has a "GONOPODIUM" it is definitely a male.
Newborn guppy fry are typically about the size of an uncooked grain of rice, some a little larger. Depending on the type of guppy and the sex, they can grow to a maximum size of about 3 1/2 inches.
Incubation is about 12 days. The chick stays in the host nest for around 18 days, depending on the food supply and how fast it has grown. Once it has fledged, it is fed by the foster parents for another two or three weeks.
The plural of guppy is guppies.