How can I tell when a female guppy is pregnant?

Answer by  Georgemarc (53)

All female guppies have a spot on their belly efered to as a gravid spot. A pregnant guppy's spot will be very dark. Check below her tail there will be tiny black spots if pregnant. When near to delivery she will become less active, and might even stop swimming completely.

Answer by  bubbaloo (66)

When a female guppy is pregnant, her gravid spot, which is under her anal fin, will become darker and her body will become rounder. Sometimes the eyes of the babies can be seen through the abdomen.

Answer by  Cali2307 (1337)

She will get a large tummy, look boxy from the front, and the spot where she removes waste will start to get darker. She may not move around much, but then she may start swimming around frantically. She may be aggressive and may hide. Eventually, she'll birth her baby!

Answer by  chitra (120)

The belly of the fish will be swollen compared to the normal ones. Also you can find a black spot under the belly.

Answer by  Liz59 (10966)

Yeah, if the shape is changed and it is a bit bigger than before, then yes it is pregnant. Good news.

Answer by  dcbuis85 (267)

Female guppies have a spot near their tail called the Gravid spot. This spot is usually light but will begin to darken if your fish is pregnant. It will turn black very close to her giving birth.

Answer by  champaign9497 (11977)

The way I usually can tell is they will get real fat and round but the best way to tll is watch the bottom of her belly the translucent part and you will start to see little black dots in there and when you see them you will know she is pregnant for sure.