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Everything is always relative to the size of the fish. If you have a small, inbred fish of less than 2 or 3 inches, its gravid spot will be no larger than 1/4 of an inch just prior to releasing the fry. If the fish is larger than that, its 'spot' will be proportionately larger.
What else can I help you with?
What is a gravid spot on a yellow molly?
A gravid spot is the dark area on the fish's butt.
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 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 know if your female guppy is truly pregnant she has that black gravel spot and is huge but other than that she seems fine?
You have said she has a gravid spot (not gravel). That indicates that she is gravid (pregnant). She would not have that spot is she was not gravid. Be patient. Provided she is in suitable conditions she will have her youngsters eventually.
Is my pregnant platy showing a gravid spot?
Yes, a pregnant platy will typically show a dark spot near its back fin called a gravid spot, which indicates that it is carrying developing fry.
When a fish has a gravel spot is it pregnant?
It is a "Gravid Spot". Yes it indicates pregnacy.
Do guppies lose their gravid spot after having her fry?
no.
Is the gravid spot on both sides of the guppy while pregnant?
The gravid spot can be seen from both sides of a female guppy, but it is located directly in front of the anal fin on the bottom of their abdomen.
What is the dark spot on a guppys abdomen that indicates presence of young guppies called?
The gravid spot. It indicates that the guppy is pregnant, and the gravid spot will grow larger the farther the guppy is into pregnancy. (pregnancy usually lasts about one month)
Can a male guppy have a black spot?
Many male guppies have 'black spots' but if by "black spot" you mean "gravid spot" then no, a male guppy can not be 'gravid' because gravid is the equivalent of "pregnant" and male guppies can not get pregnant.
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.
What is the significance of the gravid spot on a platy fish and how can it help in determining the reproductive status of the fish?
The gravid spot on a platy fish is a dark spot near the fish's anal fin that indicates pregnancy. It is caused by the darkening of the skin due to the developing embryos inside the female fish. By observing the size and darkness of the gravid spot, one can determine the reproductive status of the fish and whether it is pregnant or not.
