How Do You Tell The Difference Between Male , Female Guppys

[bae1994]

how do you tell the difference between the male and female is it just bigger tales and that and are male guppys okay together without any females

 

[youngfisher]

male guppys are fine alone.

and most lfs sell them in seperate tanks so just take a look

 

[bae1994]

cool thanks

 

[kizno1]

the males have longer fins(not all the time you can get short fined males)
and females have a gravis spot
males can live fine on there own http/www.froeses.com/savannah/DSC_2085.JPG

 

[Christi_22]

cool thanks

The sure way to tell the difference is males have a Gonopodium (the anal fin is longer and thinner) Females have a paddle shaped anal fin.

 

[OldMan47]

All of the more common livebearers have the same basic way to tell males from females. The males have a feature called a gonopodium, it is the modified anal fin that is more of a line shape than a fin shape. The fin we are talking about is the one right next to where the fish eliminate their wastes.

This is a male with the modified shape forming a gonopodium.

This is a female of the same species. You can see that her anal fin is a fan shape or maybe you would call it a triangular shape.

In this particular breed the black spot on the anal fin is a quick way to spot the females because the males don't seem to have that, but the shape is the important thing to notice.

There is another group of livebearer fish that do not have a gonopodium but use what is called an andropodium instead, that is the goodeid group, also known as the split fins. They are called splitfins because the way you spot a male in that group is by the split nature of their anal fin.

This is a male Xentoca eiseni which is a goodeid.

This is a female of the same species, again the fin is a simple fan like shape.

Now it will be almost impossible for anyone to fool you into thinking a male is a female or that a female is a male in most freshwater livebearers.

 

[helterskelter]

This is a female

The belly is much larger as they have to hold all the fry
and then anal fin under the fish is rounded.

This is a male
The fins are yes longer but not in all guppies
and the anal fin is pointed in male
they can move it as well when mateing.

 

[bae1994]

thanks