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Discussion Starter #1
Does anyone know a good method for determining the sex of a cory? I have a pair of peppered which I can't tell if one is rounder than the other, but one appears markably lighter pepper coloration. Also, would this apply to other types of cories?
 

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i think the only way to tell is that males are a bit slimmer and females slightly rounder and bigger im afraid. i dont think there is any other way thoguh if you find out please let us all know. and this method as far as i know applied to all cories, yes.
 

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I have always found it very difficult to determine between the two sexes, and here are the differences that I know of.

- males may have slighly longer and thicker dorsal spines
- some males have brighter and more defined markings
- females, when viewed from above will appear deeper, and from the front - more rounded

Saying that, I have had one of my groups of corys for over a year and can't tell the difference between them. I know that I have a mixed group as they have spawned in the past.
 

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Discussion Starter #4
Shoot. Those were the only things I could come up with and with fish barely over an inch long, it makes it really hard to determine. Thanks.
 

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do the people who work at the lfs usually know which are males and females?

i'd like to be able to trust them when i say i want one female and one male cory cats
 

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That all depends on the LFS you go to. Some staff are knowledgeable and some aren't - it depends on your luck.

If you're buying the corys as juvenilles I think they would be very difficult to sex. I've always bought mine in a group before, that way there's more likelihood of getting a mix.
 

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Discussion Starter #7
unlimitedx said:
do the people who work at the lfs usually know which are males and females?

i'd like to be able to trust them when i say i want one female and one male cory cats
I asked about a couple of other fish and they didn't know. Most of the stuff I'm getting is pretty young and like kateyoup said, I'm getting in groups to try and get a mix. Just for the cories, I'm buying in pairs for more of a variety of types.
 
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