That varies depending on the individual mollie. I think your best best is to really just watch her. She will eventually begin looking almost square, that's when it's almost time for her to give birth.
There will be a dark spot in front of the fishes anus (cloaca) in a pregnant (gravid) female livebearer. This spot is called the "Gravid Spot".
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.
The female gets a deeper tummy and there is a dark (gravid) spot by her anal fin.
The gravid spot on a guppy is not always a 100% determination of pregnancy as the colours can vary. Quite often, when they are ready to give birth, the gravid spot becomes quite dark.
With a guppy you need to look at the gravid spot. This is a dark spot in the fish's belly. A large gravid spot indicates the fish is likely to be pregnant. You can tell how pregnant the fish is by how large the spot is. Sorry I have no experience with other species.
The gestation period for this fish is usually 28 days but sometimes can take some more time. Like all livebearers when the female is in pregnant it will develop a dark triangular shaped gravid spot near her anal vent. As the pregnancy progresses this dark triangular shaped gravid spot will get larger and darker.
Try explaining why it's there.. it means the fish is pregnant. The darker it gets the closer she is to giving birth.. The gravid spot on a female guppy is a dark area directly in front of the anal fin.
A graviid spot is a dark grey spot at the back of the stomach. It is a sign to tell you that your fish is pregnant
The gestation period for this fish is usually 28 days but sometimes can take some more time. Like all livebearers when the female is in pregnant it will develop a dark triangular shaped gravid spot near her anal vent. As the pregnancy progresses this dark triangular shaped gravid spot will get larger and darker.
The gestation period for this fish is usually 28 days but sometimes can take some more time. Like all livebearers when the female is in pregnant it will develop a dark triangular shaped gravid spot near her anal vent. As the pregnancy progresses this dark triangular shaped gravid spot will get larger and darker.
It is very easy. Like all livebearers when the female is in pregnant it will develop a dark triangular shaped gravid spot near her anal vent. As the pregnancy progresses this dark triangular shaped gravid spot will get larger and darker.The feemale will be getting bigger and bigger every dayand she also will havw a dark spot on her belly before her tail. She should be a girl, have a protruding belly and a small dark dot near the base of the tail.She should be a girl, have a protruding belly and a small dark dot near the base of the tail.
The gestation period for this fish is usually 28 days but sometimes can take some more time. Like all livebearers when the female is in pregnant it will develop a dark triangular shaped gravid spot near her anal vent. As the pregnancy progresses this dark triangular shaped gravid spot will get larger and darker.