Corydoras Aeneus

[steeler58]

This is probably the best known of the cory's. Easy to keep and breed, most of the ones we see are tank raised. This was the first Cory I ever kept and still have them in my 50g. Besides being easy to keep they are still an attractive species. The best reward of keeping them was one night while I was watching TV, I saw movement in front of the driftwood in the tank next to the TV, thinking I was seeing things and approaching the tank cautiously; I saw three baby aeneus!! They grew up with the rest of the group to form a nice school. Found all over South America with several subspecies in the family including the "laser cory's"

The Bronze Cory


https://youtu.be/qCM9e5UQbD4





Information:https://www.
https://youtu.be/qCM9e5UQbD4google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=2&cad=rja&uact=8&ved=0ahUKEwjpyqWFisvTAhVI7IMKHc78BycQFgg0MAE&url=http%3A%2F%2Fwww.seriouslyfish.com%2Fspecies%2 Fcorydoras-aeneus%2F&usg=AFQjCNFTWtjqfE7pr1neNfRBFTqHdsebQg

[steeler58]

With their albino color morphs


https://youtu.be/EjrSKc3Opxg

[steeler58]

Black color morph


https://youtu.be/qS8hRm_7Fv8

[RiversGirl]

Common or not, I would love to be able to keep these. I do not feel that they would do well in my tank however, because my summertime temps hover at their upper temp limits. This does not stop me from admiring them in other people's tanks though. I love their green sheen.

I'm certain the baby aeneus were adorable!

[steeler58]

They are pretty flexible on temp range 69.8-80.6°F

[RiversGirl]

Right.
During a good portion of summer, I battle the temp to try to keep it down to 80.

I was always under the impression that keeping a species at the very top -- and pushing higher on a regular basis -- of their temperature requirements would result in stress and a much shortened lifespan.

[steeler58]

Buy a better AC :14:

[steeler58]

Good video of their spawning behavior.


https://youtu.be/uIG4n-_HIkE

[OnTheFly]

They are my favorite, Along with some of the minor variations. Hardy and active.

[RiversGirl]

hahahahaha
Perhaps so.

I feel like C. sterbai is the only cory that I can keep in my main tank, due to temperature. Please do let me know if you think otherwise, though.

[steeler58]

hahahahaha
Perhaps so.

I feel like C. sterbai is the only cory that I can keep in my main tank, due to temperature. Please do let me know if you think otherwise, though.

Yep, I see what you mean, there are two other hard to find ones so probably not worth the time and effort.

C. similis could work for you though: https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=2&cad=rja&uact=8&ved=0ahUKEwjZ1uOGlcvTAhUK8IMKHTCMC9kQFggsMAE&url=https%3A%2F%2Fwww.planetcatfish.com%2Fcorydora s_similis&usg=AFQjCNHzYCPJ9NgtaIb4R1MPSeI5m44Mhg

[AmazonJoe]

Mmmm luckily they are tolerant to a very high range these are very veeeeeeerrrrrry far removed from wild specimens there raised commercially by the thousands! So unless your trying to spawn em there fine in warmer conditions.


We should also fix the title of this thread sorts bugging me ;) C.aeneus :P

[DoubleDutch]

I love them. A few small "corrections". Lasers aren't a subspecies though in the aeneus-group. The albino is a natural "color" so I don't know if that's called a colormorph. The black ones are the man made C.schultzi "black". Though in the aeneusgroup as well not an aeneus. The aeneus shows several "appearances" as said like green, brown red, albino. Their temprange is amazing. https://uploads.tapatalk-cdn.com/20170430/538ef5c265020f03992a6626a40cfb75.jpg
https://uploads.tapatalk-cdn.com/20170430/f924d73d8de919186439567c43ab81ae.jpg

[Slaphppy7]

I feel like C. sterbai is the only cory that I can keep in my main tank, due to temperature. Please do let me know if you think otherwise, though.

My summertime house temps are similar to yours.

Along with sterbai, I keep wetzmanis, bandits, dwarfs, pandas, and leucomelas with very good results

[RiversGirl]

My summertime house temps are similar to yours.

Along with sterbai, I keep wetzmanis, bandits, dwarfs, pandas, and leucomelas with very good results

True and I do love that you are able to keep such a variety. However, your tank remains at a lower temp than mine does, I think. (I don't want to clutter this thread with tank temp dilemmas)

It certainly could be that I'm overly cautious, though. It is good to know that you are able to keep these various corys.

[Slaphppy7]

In the hottest part of summertime, all of my tanks are around 79F or so

Nothing wrong with being cautious in the hobby, Rivers

[steeler58]

I love them. A few small "corrections". Lasers aren't a subspecies though in the aeneus-group. The albino is a natural "color" so I don't know if that's called a colormorph. The black ones are the man made C.schultzi "black". Though in the aeneusgroup as well not an aeneus. The aeneus shows several "appearances" as said like green, brown red, albino. Their temprange is amazing. https://uploads.tapatalk-cdn.com/20170430/538ef5c265020f03992a6626a40cfb75.jpg
https://uploads.tapatalk-cdn.com/20170430/f924d73d8de919186439567c43ab81ae.jpg

This from seriously fish;

Despite the ubiquity of its name in aquarium literature confusion surrounds its true identity, however.

Given it’s the only member of the genus occurring on the island, fish from Trinidad do presumably represent C. aeneus, but the classification of those from other localities appears far from certain.

Currently it’s accepted to occur throughout much of South America, and indeed similarly-patterned fish do occur across a large portion of the continent.

Some of these, such as the green (CW009) and gold (CW010) ‘laser corys’ are already assigned C or CW numbers and well-known to aquarists, while others are not.

The chances that a single Corydoras species occurs across such a vast geographical area is unlikely for a number of reasons, and there already exist the following nominal taxa, all of which are currently considered synonyms of C. aeneus:

Corydoras microps Eigenmann & Kennedy, 1903. Type locality: from a small lagoon, half dry, near the Rio Branco (Mato Grosso, Brazil).
Corydoras venezuelanus Ihering, 1911: Type locality: Río Cabriales, Valencia, Est. Carabobo, Venezuela.
Corydoras macrosteus Regan, 1912a: Type locality: Rio Piracicaba, San Paulo, Brazil.
Corydoras schultzei Holly, 1940: Type locality: aquarium specimen (said to be from very small water-courses of the Amazon).
Of these, C. schultzei has been routinely misapplied to a melanistic strain of aquarium C. aeneus which exhibits a blackish colour pattern, is often traded as ‘C. schultzei black’ and said to be exported from Venezuela.

The melanistic fish were in fact first recorded in Germany in the early 1990s with a handful of dark-coloured fry appearing in a batch captive-bred from a form of C. aeneus.

These were line-bred to fix the unusual trait and subsequently appeared in the trade.

The fry possess orangish fins as do those of a form of C. aeneus exported from the llanos of Colombia and Venezuela which is able to darken its colouration when stressed and known as ‘C. venezuelanus black’ (see below for more about this form), so this is where the confusion may have started.

As a result the line-bred fish now tend to be traded under both of these names, despite neither being correct, and the appearance of wild ‘C. venezuelanus black’ remains somewhat vague with more than one species possibly confused under the name.

The name C. schultzei has also been applied to a fish usually exported from Peru and sometimes referred to as ‘gold flash’ or ‘Peru gold-stripe’ cory (not to be confused with the ‘gold laser’, CW010, or ‘gold stripe’, CW014/C023, forms).

This does appear distinct from other C. aeneus-type fish and may well prove to be so, but because the type locality of C. schultzei is not known, the original description has proven unobtainable thus far, and it remains invalid in an official sense, we’ve chosen to retain the name in synonymy with C. aeneus for the time being.

C. venezuelanus is another name that has not been considered scientifically valid for a number of years but is widely used in aquarium literature.

As with C. schultzei this appears to have occurred in the absence of any detailed rediagnosis and it’s unclear which characters should be used to define the species.

The name may well be applicable to a Corydoras sp. inhabiting the states of Miranda, Aragua and Carabobo in northern Venezuela, although it’s more often used in reference to ‘C. venezuelanus black’.

[mbkemp]

Wow!! That is an awesome read. Thank you for the research!!

[steeler58]

Mmmm luckily they are tolerant to a very high range these are very veeeeeeerrrrrry far removed from wild specimens there raised commercially by the thousands! So unless your trying to spawn em there fine in warmer conditions.


We should also fix the title of this thread sorts bugging me ;) C.aeneus :P

Not a fan of history/mythology eh? https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=2&cad=rja&uact=8&ved=0ahUKEwiH7baW5szTAhWm24MKHXEPAvMQFggxMAE&url=https%3A%2F%2Fwww.britannica.com%2Ftopic%2FAen eas&usg=AFQjCNFKbrAcrGKhpXXetoGxM0dvN6-MIA :hmm3grin2orange:

[OnTheFly]

Mmmm luckily they are tolerant to a very high range these are very veeeeeeerrrrrry far removed from wild specimens there raised commercially by the thousands! So unless your trying to spawn em there fine in warmer conditions.


We should also fix the title of this thread sorts bugging me ;) C.aeneus :P

The fact most of our fish are not wild certainly adds a variable. I can easily find somebody on the internet that had good luck raising any particular species at xx temp, way out of native temp range. But I can't know what conditions that particular fish was raised in/adapted to over generations. Same with PH. The stock we buy in the US seems to be much more tolerant, but it is hard to know what is acceptable without seeking out anecdotal evidence on the net.

[DoubleDutch]

https://www.planetcatfish.com/common/species.php?species_id=34

[DoubleDutch]

BTW : Had this one in my fry.
Possible cross emerald aeneus (quite a different aeneus) × bronze.
https://uploads.tapatalk-cdn.com/20170430/70f098ec11286492a68c94256a3f4d4d.jpghttps://uploads.tapatalk-cdn.com/20170430/17b707bc4faf2be21e82bfd8fe72ef15.jpg

[steeler58]

I've heard corys will hybridize when closely related like those two, I've been trying to find the Japanese video I found one time of a cross between Sterbai and Panda's which I found unusual :ssuprised:

[DoubleDutch]

I've heard corys will hybridize when closely related like those two, I've been trying to find the Japanese video I found one time of a cross between Sterbai and Panda's which I found unusual :ssuprised:
Yeah but aeneus x aeneus in fact is nu hybrid hahaha. But as said the two are quite different. Teying to keep them apart though.

Panda's are notorious hybridizers. With trilineatus and similis I know, with sterbai I don't (thought they were to fat apart).

In front one of the huge aeneus green.
The biggesr but most skittish Corys I have ever owned.https://uploads.tapatalk-cdn.com/20170430/4d7b99b27869f02d6ed14449778732d8.jpg

[steeler58]

Here's the video of Sterbai and Panda hybrid , found it while looking for a video to post for the new Sterbai thread.


https://youtu.be/3hR3_I5gzoo

[DoubleDutch]

Here's the video of Sterbai and Panda hybrid , found it while looking for a video to post for the new Sterbai thread.


https://youtu.be/3hR3_I5gzoo
Thanks Lee. Quite obvious !!!!