How Can you tell the Difference between male and Female Guppies?

Male guppies are thinner, have longer and bigger top fins, and are normally prettier. They have a stick-like anal fin called a gonopodium.

http://www.phsaquatic.com/images/fishes/guppy.jpg

http://www.aquariumfish.net/images_01/guppy_male_f...

Female guppies are fatter in the stomach area, have a fan/triangular shaped anal fin, and they have something called a gravid spot by their anal fin. Those are where her babies are. It will get darker as she grows more pregnant.

http://www.dkimages.com/discover/previews/774/1184...

http://www.aquariumhobbyist.com/guppies/Femaled.jp...

Hope this helps!

Good luck!

Well the male have big tail fins and are much more colour full than the female. Well the grey ones they prob the female cause not all female guppies are colourful

check out this question thread. It has a good pic of a male guppy. and the Best answer gives a very good description between the sexes.

http://answers.yahoo.com/question/index?qid=200804...

Well guppies are livebearers.. The males have a... "you know what" and the females dont.. Its right next to the stomach or the anus of the fish

The males have longer and flasher fins

male~~~~~~~~

http://www.aqua-fish.net/imgs/fish/guppy8.jpg

Female~~~~~~

http://www.aquariumfish.net/images_01/guppy_female...

The female have shorter fins

hope i helped

females have fanned anal fin n males have pointed anal fin. females are less colorful/pretty

female- http://www.aquariumfish.net/images_01/guppy_female...

male-

http://aqualandpetsplus.com/Livebe6.jpg