Cory fat, sick, or gravid? - Tropical Fish Keeping - Aquarium fish care and resources
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post #1 of 13 Old 02-29-2012, 06:43 PM Thread Starter
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Cory fat, sick, or gravid?

Or maybe all three?

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 ;)

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post #2 of 13 Old 02-29-2012, 06:45 PM
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hmmm, could be fat or prenant considering that she is feamale
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post #3 of 13 Old 02-29-2012, 06:55 PM Thread Starter
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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 =)
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post #4 of 13 Old 02-29-2012, 07:07 PM
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She doesnt have a gonodpodium she has a more round anal fin, not a straight pointed one
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post #5 of 13 Old 02-29-2012, 07:15 PM Thread Starter
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Thanks!

Although I'm clueless on seeing the difference between males and females in almost all fish :D
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post #6 of 13 Old 02-29-2012, 07:18 PM
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Haha i used to be as well, then i just learnt
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post #7 of 13 Old 03-01-2012, 12:02 PM
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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.

Byron.

Byron Hosking, BMus, MA
Vancouver, BC, Canada

The aquarist is one who must learn the ways of the biologist, the chemist, and the veterinarian. [unknown source]

Something we all need to remember: The fish you've acquired was quite happy not being owned by you, minding its own business. If youíre going to take it under your wing then youíre responsible for it. Every aspect of its life is under your control, from water quality and temperature to swimming space. [Nathan Hill in PFK]
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post #8 of 13 Old 03-01-2012, 01:06 PM Thread Starter
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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.
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post #9 of 13 Old 03-01-2012, 04:44 PM
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Thankyou Byron for clearing that up, I have been told that the anal fins can diagnose the sex of the cory
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post #10 of 13 Old 03-27-2012, 12:35 PM Thread Starter
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Mystery solved without a doubt...

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