How long does it take for a guppy to have babies

21–30 days Guppy. Guppies are highly prolific livebearers giving birth to between five and 30 fry, though under extreme circumstances, she may give birth to only one or two or over 100. The gestation period of a guppy is typically 21–30 days, but can vary considerably. (source)
Most female Guppies first produce young ones between 10 to 20 weeks of age, while males can mate and breed at 7 weeks. After the first breeding, Guppies can reproduce after every 30 days and continue reproducing up to around 20 months of age, which closely coincides with Guppy average lifespan. Feb 10, 2021 (source)
https://www.youtube.com/watch?v=GN_d-ys6B3s
A female guppy can have 50-60 young at one time. Jan 23, 1999 (source)
https://www.youtube.com/watch?v=dg1PV6zzTu4
Yes, they do. Though guppies are one of the calmest breeds and are generally pretty peaceful, they often end up eating their fry. This weird and disturbing activity is termed as filial cannibalism. (source)
https://www.youtube.com/watch?v=VIt5CC0IVyw
Male guppies will bend their spine to the side and will start flaring, dancing, and jiggling around female guppies. I can ensure you, that there is nothing wrong with your fish. This is the mating behavior of guppies. Males will do this mating ritual all day long. Nov 22, 2021 (source)
Guppies are livebearers, which means, they give birth to live fry. The female guppy gives birth to 20-60 fry at a time. They usually give birth once every 30 days, until they become 2-2.5 years old. Usually, the female guppy will hide, when she is ready to drop the fry. (source)
After Your Guppy Gives Birth After your female gives birth, separate her from the fry, either through the use of a mesh or another tank. This is necessary as she may eat the fry, seeking the nourishment she needs to recover. Isolate her for one to two days. During this time, feed her well and regularly. Aug 9, 2021 (source)
A pregnant guppy needs good nutrition to sustain herself as well as her developing fry. Unfortunately, she’s unable to eat very much at a time due to the space the fry take up. So, it’s important to feed three to five small meals throughout the day so you don’t overload her. (source)
During mating season, male guppies either attract females with their brightly-colored bodies or harass smaller females into mating by nipping and chasing them. The females usually only mate with the most attractive males to ensure the production of high-quality offspring. Oct 19, 2011 (source)
Remove the mother immediately after the birth or she’ll eat the babies. It’s natural for the mother to eat her babies, so it’s important to remove her as soon as you can. Use a fish net to scoop the mother from the breeder net or tank, then place her back in her regular habitat. (source)
It’s not uncommon for guppies to die after giving birth, and in some cases, even during birth. Unfortunately, there are many reasons that this can happen, and some of them are beyond your control. However, in some cases, you can reduce the chance of your fish dying after giving birth. (source)
Guppy fry are easy to keep, but their growth to maturity takes about three months and that can sound like a lot! They’re not hard to keep, but you need to make sure you provide good nutrition and conditions so they grow well. (source)