*Sexing Livebearers *
Male or Female!.
Males possess a modified tubular anal fin called a gonopodium located directly behind the ventral fin which is flexed forward and used as a delivery mechanism for one or more balls of spermatozoa. The male will approach a female and will flex his gonopodium forward before thrusting it into her and ejecting these balls.
The Females anal fin is shaped like a fan.
Guppies, Platies, Swordtails and Mollies are all sexed the same way.
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