Tropical Fish Keeping - Aquarium fish care and resources

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-   -   Cory fat, sick, or gravid? (

Geomancer 02-29-2012 06:43 PM

Cory fat, sick, or gravid?
Or maybe all three? :-P

This is the only picture I could get, I've got lots of plants and decorations they move through.

The white splotches are water marks on the glass, no on the fish ;)

dmuddle 02-29-2012 06:45 PM

hmmm, could be fat or prenant considering that she is feamale

Geomancer 02-29-2012 06:55 PM

Humm, interesting, how can you tell she's a she?

I'm fairly sure none of the eggs will make it to fry, but it would be interesting if nature wins =)

dmuddle 02-29-2012 07:07 PM

She doesnt have a gonodpodium she has a more round anal fin, not a straight pointed one

Geomancer 02-29-2012 07:15 PM


Although I'm clueless on seeing the difference between males and females in almost all fish :D

dmuddle 02-29-2012 07:18 PM

Haha i used to be as well, then i just learnt

Byron 03-01-2012 12:02 PM

To correct, the anal fin has no relevance respecting sex in this species, or any cory. On male livebearers (and a few other rare fish) the anal fin is modified into a gonopodium, and the female's is a normal fin. But not here.

With corys the only external difference is girth; when viewed from above, the female is noticeably wider in mature fish. Females may be slightly larger in length, all else being equal.

To your initial question, I honestly wold not want to say one way or the other (disease issue, or eggs). I would keep a close eye on this fish.


Geomancer 03-01-2012 01:06 PM

How long is normal for holding eggs?

Behavior wise, nothing unusual going on. No labored breathing, is active, searches out food. The only difference is being quite bloated looking.

dmuddle 03-01-2012 04:44 PM

Thankyou Byron for clearing that up, I have been told that the anal fins can diagnose the sex of the cory

Geomancer 03-27-2012 12:35 PM

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