Identification of seven Corydoras

[kiwidu21]

Hello,

I need your help again for the identification of 7 Corydoras (and sexing if possible).
Here are the first 3:

Corydoras n°1:
C. ambiacus male ? About 7 cm



Corydoras n°2:
C. leucomelas female ? About 4 cm



Corydoras n°3:
C. ambiacus female ? About 7 cm

[kiwidu21]

Here are the last 4 that were sold to me as C. venezuelanus. What do you think ? They measure 4 cm for the smallest and 5 cm for the largest. I'm thinking 3 males and 1 female.

[kiwidu21]

Nobody ?

[joshcatfish420]

If they are fat and round they are most likely a female. Skinnier ones are males. First 2 look like females to me.

[Jools]

IDs look good. All these fish I've collected in the wild. I'd consider

Corydoras delphax

for no3 but not sure from photo. The last ones are interesting - they remind me a lot of

Corydoras(ln7) sp`llanos`

. How that fish could get to you in France is a complete mystery.

Jools

[kiwidu21]

Thanks.
I can take pictures of n°3 if it can help. For the last 4, they had just arrived so were stressed. I also take photos.

We have big problems in France with the Corydoras. Many are imported under the wrong names (hence my many requests for identification). I just found an importer that seems to have the right names but I needed to identify the others before I could expand the groups.

[kiwidu21]

Here are other pictures of Corydoras n°3. The size doesn't seem to match C. delphax but the pattern seems to be the same.







And here are some new pictures of C. venezuelanus. I looked for C. sp llanos but on the two photos that there are, I don't see the yellow spot at the bottom on the back whereas we see it on the photos of C. venezuelanus. But maybe that's not a feature.

[Jools]

I'd stick with the C. ambiacus ID - spots are just too big and a little irregular for C. delphax.

CW041

is an option for the Bronze Cory. Maybe let it settle in the tank and take a few more pics?

Jools

[kiwidu21]

CW041

is an option for the Bronze Cory. Maybe let it settle in the tank and take a few more pics?

Jools

Thanks. I'll take pictures in a week in this case. CW041 also looks like it.

[kiwidu21]

Hello, they have moved into their final tank. Their color stands out better, hoping that this is sufficient for identification.
https://youtu.be/DxSjXgqWJF0

The fact that several corydoras move together (so as to form a group) is it a sign that they are of the same species or should we still be wary?

Moderator edit: I fixed the YouTube link.

[kiwidu21]

Hello, they have just reproduced and I counted about 150 eggs for a female of about 5 cm. I thought that might help with identification.

[sturiosoma]

Looks like Bronze aneus to me not venezuelas

Jeanne

[kiwidu21]

I have aeneus and they don't have the yellow spot on the back or such a marked orange spot on the head.
Maybe a selection ?