View Full Version : Sexing Guppies
t_h_e_s_a_c_k
06-09-2003, 10:10 PM
How do you sex a guppy?
pinballqueen
06-09-2003, 10:13 PM
The key is in the anal fin.
In males, the fin right under the base of the tail is pointy and looks "squished together". In females, this fin is shaped like a normal fin, like a triangle or a fan.
Other than that, usually females have a big blackish area at the back of their abdomen towards their tail when they are pregnant, except on a dark-colored female.
optix
06-09-2003, 10:17 PM
The fin is called a gonopodium which is a true sexual organ. Only found on livebearers
pinballqueen
06-09-2003, 10:28 PM
Thank you. I couldn't think of the technical name.
(and it would've been bugging me for days, since I'm too lazy to actually look it up lol )
:D
tricksterpup
06-10-2003, 12:31 PM
This site should also help with the anatomy of a guppy.
http://www.guppies.com/PAGES/anatomy.html
Originally posted by pinballqueen
Thank you. I couldn't think of the technical name.
(and it would've been bugging me for days, since I'm too lazy to actually look it up lol )
:D
lol im very lazy about looking things up like that, don't feel bad :p
net_shark512
06-10-2003, 3:37 PM
Also in adults its easy. Males have bigger more colorful fins. Tail fin is much bigger. Thats assuming you are talking about fancy tail guppies. I know never assume.:p
Faramir
06-11-2003, 2:39 AM
The small ones chasing the big ones with an evil gleam in their eyes are the males.
The harrassed but resigned looking, drabber, big ones are the females.
:D