Males and females

[Snailguy101]

How do you tell if platies are males or females And how do you tell if mollies are males or females?

 

[paulthegreat]

The males will have a gonopodium, that is a thin elongated anal fin that looks like a pin rather then the triangular fan shaped fin of a female. If the fish are juveniles they may all have the triangular fin that can collapse together to form them males reproductive organ as they age and do a sex determination. This usually happens when the juvies are about 75% full grown but may happen at a later stage depending on the individual. This is the case in all of the common livebearers.

 

[afireinside]

females have the gravid spot.

 

[Snailguy101]

Can I get a pic plz?

 

[Annastasia]

Paul described it very well...but here's a link with a picture. Male on left, female on right. All Livebearers will have the same kind of fins shown in these photos:


http/www.fishforums.net/index.php?showtopic=13664