Cory identification

[Skyshadow3246]

My LFS just had these guys labeled as "corydoras". And ideas on identification?

(Edit to add clearer picture)

 

[carsonsgjs]

Looks like a bronze cory to me.

 

[Mlou]

think it's C. Aeneus...Bronze cories

 

[DoubleDutch]

c.venezuelanus

 

[Skyshadow3246]

c.venezuelanus

I've never heard of this kind. Does it have a common name?

 

[Zach72202]

This is indeed Cordoras venezuelanus. Also known as the Venezuelan Cory or Red Sailfin Cory

It looks like C. Aeneus due to the green body, but the red dorsal fin (top fin) is a primary indicator of C. Venezuelanus

 

[GuppyGal7]

Just go back and ask. They'll have the scientific name in the order history.

 

[Flyfisha]

An important bit of information .
Corydoras or at least some species will cross breed. I don’t know about the species mentioned above but suggest if the shop chooses to call them by the general name corydoras then it’s possible they have doubts about the blood line?
No big deal but should they breed for you and you need to sell or give some offspring to someone then they should also know of the likelihood of a cross in the bloodline somewhere in the past?

Someone trying to maintain a pure strain should not a some future date end up buying the offspring or any future offspring of those fish thinking they are buying whatever name is decided on by fishlore.

I am not trying to be a smart donkey but this is how the trouble starts.
They are indeed corydoras that is all you can be certain of. The shop did not label them with a name for a reason I suggest?

 

[DoubleDutch]

An important bit of information .
Corydoras or at least some species will cross breed. I don’t know about the species mentioned above but suggest if the shop chooses to call them by the general name corydoras then it’s possible they have doubts about the blood line?
No big deal but should they breed for you and you need to sell or give some offspring to someone then they should also know of the likelihood of a cross in the bloodline somewhere in the past?

Someone trying to maintain a pure strain should not a some future date end up buying the offspring or any future offspring of those fish thinking they are buying whatever name is decided on by fishlore.

I am not trying to be a smart donkey but this is how the trouble starts.
They are indeed corydoras that is all you can be certain of. The shop did not label them with a name for a reason I suggest?

Cause they're not knowledgable maybe ?

 

[Coradee]

Considering they can’t even get C.trilineatus right & look how many spotted ones come through with the name ’punctatus’ I doubt their invoice/shipping history will be accurate.

I have to stand up a little bit for the Lfs here, just because they don’t know the exact species name does not mean they may be a hybrid, please remember the sheer number of fish these stores are dealing with, they cannot possibly have extensive knowledge on every single species.

Edit: btw I agree with Doubledutch that it’s C.venezuelanus

 

[Flyfisha]

This is a cultural difference between the hobby in the northern hemisphere and in Australia. I could leave it at that?

In my country a fish sold without a label is an “aquarium strain “ . In this case an aquarium strain corydoras.
We are not picking the shape of a betta tail to call it a moon dance or a skywalker. You guys are giving a name to something that has no name just by looking at one photo.

Skyshadow3246 contact the seller if they will not give you a definite name then don’t sell or give the offspring to anyone without passing on the providence. / the history.

 

[DoubleDutch]

This is a cultural difference between the hobby in the northern hemisphere and in Australia. I could leave it at that?

In my country a fish sold without a label is an “aquarium strain “ . In this case an aquarium strain corydoras.
We are not picking the shape of a betta tail to call it a moon dance or a skywalker. You guys are giving a name to something that has no name just by looking at one photo.

Skyshadow3246 contact the seller if they will not give you a definite name then don’t sell or give the offspring to anyone without passing on the providence. / the history.

To be honest I don't exactly get your point.
Isn't that the way to identify fishspecies and in this case a Corydoraspecies.
What exCtly do you mean by "aquariumstrain"

In LFS's overhere they offer "spotted" "lined" "black and white" Corys. Sometimes even as "algae-eaters".
On Market place a specific shop offers C.aeneus with a pic of C.eques and a C.aeneus albino with a pic of C.paleatus albino.
A lot of LFS's (and even wholesellers) lack the knowledge of Corys or sometimes fish in general.

The fish in the pic are great looking C.venezuelanus. As earlier mentioned these fish were earlier seen as a specific type of C.aeneus (they are in the Aeneus-group) and therefor often crossbred (at that time it wasn't seen as crossbreeding of course) with C.aeneus. That's the way the green variaty of C.aeneus occured.

 

[Flyfisha]

Aquarium strain is a term used in my country for any fish at auction that has no catch point known. A fish of unknown origin. A fish of low value.

Our shops are no better at naming fish and mislabeling fish. Our corydoras breeds are in a total mess with very little new blood being imported.

By all means call the fish whatever you like. My point is that it was not given a name most likely because of the genes not being 100% correct. We should not name a fish by one photo and lead those who purchase the offspring to think it’s something it may not be.
Asking the seller what they call it is in my opinion the only way forward.


I would not take a fish to auction labeled as something someone named by a photo having brought it as a corydoras.
Clearly this is the difference in how our clubs deal with hybrids and others don’t.

If you are all happy to call it a C. Venezuelanus I don’t wish to argue.

 

[Skyshadow3246]

Wow. This blew up overnight o.o'. I have no interest in breeding or selling or any of the random stuff people were saying. Literally just wanting to know how big to expect these guys to get! The LFS didn't know any more than corydoras which is why I asked on here.

Thanks for all the info.

 

[Flyfisha]

I am so sorry if we high jacked your thread Skyshadow3246. I hope the fish settle in to your tank ok.

 

[DoubleDutch]

I think one thing we do on this forum and other forums is trying to ID fish by a picture.

Funny thing is that C.venezuelanus (guess where they come from) have a pretty specific pattern and color.
If they'd be crossbred with bronze for instance they would have lost both (often when crossbred with less brightly colored fish).

The common "bronze" indeed is a commercial mix of several different types of C.aeneus.

Comparing with different types of Bettas isn't a good idea cause the Corys are seperate species (DNA-based) and the bettas different types of the same species.

I seriously think in this case the lack knowledge of corys is to blame calling them only Corydoras.