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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.

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Q: How big and dark does a pregnant female molly's gravid spot get?
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How can you tell when a veil tailed guppy is pregnant?

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".


How do you tell the difference between a fat female guppy fish and a pregnant guppy fish?

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.


How do you know that a guppy fish is pregnant?

The female gets a deeper tummy and there is a dark (gravid) spot by her anal fin.


If a female guppy gravid spot is yellow is she pregnant?

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.


How do you know if a tropical female fish is pregnant?

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.


How can a lone female dalmatian molly get pregnant and have babies?

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.


After the female Guppy gives birth does the gravid spot go away?

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.


What is a gravid?

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


How can you tell when your molly will give birth?

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.


How long will it take a molly to get all her babies out?

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.


How do you tell if a guppie fish is pregnant?

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.


How can you tell when a lyre fish molly is ready to give birth?

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.