please help me...

[waecky]

hi everyone.i really love fishes.but i dont know how to differentiate the male and the female.my fishes are th ff.:

-japanese carp
-black moore
-swordtail
-black molly
-guppy
-koi

but i really dont know how to determine if it is a male or a female.

i hope you could help me with this.thanks for your time..

-waecky

[Kissyboots]

Swordtail:
Male - developes a "sword" on his tail. It's like a black stick
Female - doesn't have a sword. Is usually fatter and rounder than the male.

That's all I own/have owned so I can't help you with the others.
Welcome to the forums, btw.

[Stykman]

DOn't know about the Carp, Black Moore, or Koi...but I'm guessing you may be able to Google and find it.

Guppies, Mollies, and Swordtails are all the same.

Kissy's Absolutely right about the "Sword" on the Male Swordtails. But they also have a Gonopodium. I believe all livebearers do. Mollies, and Guppies don't have the Sword, so...

If you look on the "Bottom side" underneath the fish, you will see either a regular old Fin, or a "gonopodium". It looks like a fin that is all bunched up into a "roll", and extends towrds the back of the fish. These are the males. The females just have a fin.

Here's a Pic of a Male Swordtail...the Guppy and Molly Males will have the same look on the bottom:



Here's a Female Swordtail...notice, No Gonopodium, just a Fin.



Images Courtesy of aquariumfish.net

[Kissyboots]

Here's my swords: Neo and Starlet

[Lovingmytank]

The Carp, Koi and Black Moor are all types of Goldfish / Carp, there are no real external differences other than at spawning time, when in season, males of all three types develop breeding tubercules around the head and gill plates

[pete32]

the male developes a sword on his tail. and females tail is rounder

[waecky]

Originally Posted by Kissyboots

Here's my swords: Neo and Starlet

thanks much for the pics.now i know which one is which.ehehe

[waecky]

is it ok to unite the molly tribe to the moors? ehehe

[waecky]

thank ya'll for helping me..Ü

[AlyKat]

Originally Posted by waecky

i dont know how to differentiate the male and the female.my fishes are th ff.:

-japanese carp
-koi

but i really dont know how to determine if it is a male or a female.

The livebearer questions have been answered, but the carp and koi...if they're are anything like regular old goldfish...the males will get white spotty looking things called tubicules on the gills...they kinda look like little pimples...almost like ick, but it's not...not to mention they way they'll chase the females around when the water temp goes up...they literally beat the eggs out of her...it's actually kinda disturbing to watch :::covers eyes:::

Hope this helps! And welcome to the tank!