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I've read that you can begin distinguishing the fish at about one week of age. this is very hard (for me at least because they like to squirm around) and also somewhat unnecessary. waiting until they are about a month old is easier and also around the time you can begin separating them if you chose to do so. a Female will have a larger more fan-like fin on it's underside and a male will have a modified fin called a "gonopodium".
What else can I help you with?
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.
Feeder fish How do you tell male from female of the?
Feeder fish, How do you tell male from female of the?
How can you tell a female guppy?
A female guppy has a darker brown line that is visible through its body. The male has a very light brown line.
How do you tell a female guppy from a female mosquito fish?
Mosquito fish dont have any color, they are mainly tan or grey in color, and they are thinner and longer looking.
How do you tell if you have a male angelfish or a female?
You can tell a male angel fish from a female one by all the colorful stripes it has. [the male one]
How can you tell if guppy fish is pregnant?
The female guppy will develop a dark spot on the side of her belly during pregnancy. As the pregnancy progresses, the spot will grow darker.
How can you tell if a turquoise guppy is a boy or a girl?
You can tell by it's anal fin that is located at the bottom of the fish. If it is a male guppy it will have a gonopodium it looks like a backwards point, and if it is a female it will have a anal fin that looks like a backwards Chinese or Japanese fan. I really hope this helps if not post a photo ok
How can you tell if you have a female guppy?
it will have a fan tail by the begining of its tail, they are generally bigger than a male and males have alot more color than a female.
How do you tell if a balloon belly fish is a male or female?
their bellies
How do you tell if a Mollie fish is a male or female?
By performing an experiment
How can you tell a female fish from a male fish?
The male is larger and has much larger fins and much showier, brighter colours than the female who is quite a drab little fish.
How to tell if a fish is about to lay eggs?
you can tell if one of the female fish has a puffy stomach a female has a big shape of a V and a male has a smaller one.
