Tropical Fish Keeping - Aquarium fish care and resources

Tropical Fish Keeping - Aquarium fish care and resources (http://www.tropicalfishkeeping.com/forum.php)
-   Fish Breeding (http://www.tropicalfishkeeping.com/fish-breeding/)
-   -   male or female (http://www.tropicalfishkeeping.com/fish-breeding/male-female-6717/)

fishlover1 06-26-2007 12:55 PM

male or female
 
how do you tell if a cori is a male or female

leifthebunny 06-26-2007 12:56 PM

As they mature, females get plumper.

fishlover1 06-26-2007 12:57 PM

ok thanks

fish_4_all 06-26-2007 02:43 PM

Thats the only tried method to identify male and female. There is a lot more out there, like the females belly will rest on the substrate where a males won't if they pectorial fins are down. Males have a tendency to have a higher more pointed drosal fin that females. The females pectoral fins are cupped so they can hold the egg where the males is is almost a reverse cup.

That all being said, it comes down to realy getting to know them. I know it sounds like one of those "expert" things but I can tell just belooking at them now without going into all the body details and I don;t make a point to study them. All it took was one breeding session and I can now fairly accurately tell the sex of any of the species I have kept even before mature.


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