How do you tell the difference between male and female mollies?

Answer 1

You will be able to tell by the anal fin. This is a fin that is located in between the stomach and tail. If the fin points straight out it is a male, if its a 'fan' shape its a female. And also males do tend to be a little bigger than females too but the best way to tell is by the fin.

Answer 2

The male is longer and narrow, his dorsal fin is smaller. The female is larger in the stomach area and her fin is larger.

the best way to tell if a mollie is male is to look at the anal fin. right below it is another fin. if this fin is spread out like a fan you have a female. the males have

it rolled up. they use it in reproduction.

Answer 3

Just in front of the fishes vent (poo hole) there is a fin. If the fin is like a fan or quarter of a circle the fish is a female, if this fin is thin and pointed like a nozzle then the fish is a male. In the male this fin is called a 'gonopodium' HTH

Answer 4

Until about 4-5 months it is hard to determine sex in mollies. Once mature enough if you look at the back fin under the stomach of the fish and see how it is displayed. Males are pointed while females are more fan shaped.

Answer 5

You can tell by looking at the anal fin. Only males have the tubelike structure called the gonopodium.

Answer 6

You can tell the Gender of a molly by looking at how its fins are formed. Male mollies have something called a gonopodium located between their pelvic and anal fins.

Answer 7

Males have a dart like parallel fin on their belly and girls have a fan fin on their belly.

Answer 8

Take a close look at the fin under the fishes tummy if it is triangular then the fish is a female if it is narrow and pointed it is a male.