Crazy corys breeding?

So since our 34 gallon tank was set up in March we have added 6 emerald aeneus corys (all in March, over time). All was well. A couple weeks ago I found one dead. I can only find three corys now, but have not found any body's if the other two. So I think we have 3 corys now. We don't see them much, so I am trying to switch to feeding them during the day rather than at lights out.
So, for the past 2-3 days the three corys have been having crazy fits of chasing each other all over the tank. Someone else posted something similar recently and hers were breeding. If this is what mine were doing, where should I look for eggs? I did a water change on Thursday and fed bloodworms on Friday, if it matters. I know it isn't likely, but a girl can hope right?

 

If they're breeding, I'm not sure if any fry will survive, but it is a possibility Do you know the sex of your corys? The recommended breeding ratio is two or three males to a female (opposite of livebearers). When corys mate, males will chase a female until she is ready. If I remember properly, when they mate, two fish will form a "T" shape. The male will release his milt and, I don't think anyone knows for sure yet though, it is assumed the female takes it in through her gills, then passes into her eggs.
Then they swim off and she will deposit her eggs on a flat surface.

 

Thanks. Basically if they were mating I thought I would look around for the eggs to see if I could save them. No idea if they were - they were just being crazy. I have no idea what sex they are - they are all big, that is all I know.

 

If you want them to come out more add 5 more at least!

 

If you want them to come out more add 5 more at least!

We originally had a school of 6 (added 4, then 2 more a week later).... one I know died (found a body), but I only see three now. Even when I peek around and during water changes. I was thinking they were just hiding well, but I am starting to change my opinion that maybe we lost two without knowing it. So we will probably get more... but I need to wait until the tank calms down from the addition of the cardinals. And I also am still torn about taking out ALL the decorations and plants (which are just planted floating plans) to get a Really head count. But that seems like SO much work and so stressful to the fish that I haven't done it.

 

We had 6 to have a school.... one I know died (found a body), but I only see three now. Even when I peek around and during water changes. I was thinking they were just hiding well, but I am starting to change my opinion that maybe we lost two without knowing it. So we will probably get more... but I need to wait until the tank calms down from the addition of the cardinals. And I also am still torn about taking out ALL the decorations and plants (which are just planted floating plans) to get a Really head count. But that seems like SO much work and so stressful to the fish that I haven't done it.

Sorry to hear when you get a chance add more! You will not regret it

 

See everyone who has corys reports loving them. When we first added them to the tank we saw them for about 48 hours, then they took to hiding. When we added the last two then we saw them all again for about 48 hours and I was so excited because they are so cute, but then they went into hiding again. That was by the end of March. I only found the body in mid-may. I want to love them, but sometimes I am just annoyed that this supposedly awesome fish that I never see is taking up bioload which could be used for other fish.

 

Yes that's what happened to me when I only had five. But when I added 5 more it's like the tank came to life!!!!! I couldn't believe my eyes!!!!!!!!!

 

Strange thing is my "emerald" aeneus are the most skittish of all Corys I own. Bumping into the glass if someone is in the room.

 

Strange thing is my "emerald" aeneus are the most skittish of all Corys I own. Bumping into the glass if someone is in the room.

Can we see a pic?

 

Sorry you can't. I am not at home (holiday). A pic of what do you mean?

 

Sorry you can't. I am not at home (holiday). A pic of what do you mean?

Of your emerald cories. And who is taking care of your fish?

 

Will be back in three days. My daughter is defending the fortress. They are so difficult to get om camera!!!

 

Lol nice!

 

So - good news! We saw four corys at the same time tonight! Out being goofy and chasing each other all around again. So that is great! Only one I can't account for.

Dumb question... I know people talk about bronze & albino both being the same species and thus schooling together. If emerald corys are aeneus as well - will they school with bronze or albinos too? DoubleDutch?

 

Coming back to this with hopes of getting my last question answered. Coradee? Dovah? TexasDomer?

 

So - good news! We saw four corys at the same time tonight! Out being goofy and chasing each other all around again. So that is great! Only one I can't account for.

Dumb question... I know people talk about bronze & albino both being the same species and thus schooling together. If emerald corys are aeneus as well - will they school with bronze or albinos too? @DoubleDutch?

Emerald cories are a different species, though maybe there's a green morph of C. aeneus?

 

If the 'emerald' corys are aenus then yes they'll shoal with albino & bronze aenus.
This is why I dislike trade names as C.splendens (Brochis splendens) were & still are known as emeralds which gets very confusing.

 

I think there is a green aneous as well so those would all school together as they are just color morphs but same species. I can't remember where I saw that but it might have been on trinsfish. com or where ever else I was looking at for the kuhlis. Now I need to hunt. Alison

It is just listed as green corydora catfish , no latin name , but is the same price as the albino and bronze. Alison

 

I am serious thinking about selling the green aeneus. They are staying soooooo skittish that other aeneus hardly can even school with them.
They are so different in behaviour to my other aeneus. Taking pics of these guys are hardly possible.
It's quite strange they are showing this from the start (got them young). In the same time the albino Peppered are quite and stay in front. So do the other aeneus in other tanks.

 

I am serious thinking about selling the green aeneus. They are staying soooooo skittish that other aeneus hardly can even school with them.
They are so different in behaviour to my other aeneus. Taking pics of these guys are hardly possible.
It's quite strange they are showing this from the start (got them young). In the same time the albino Peppered are quite and stay in front. So do the other aeneus in other tanks.

Are they very active? And how many are in that group?

 

I've 6 in with 10 Peppered and some aeneusfry (other type).

 

I've 6 in with 10 Peppered and some aeneusfry (other type).

I would add 4 more and are they active compared to the others?

 

Thanks Sara. I am keeping about 120 Corys though hahaha so I know about their behaviour and needs. I have these green ones for some years now (in different tanks and with different companions) but they have behaved completely different than other Corys (some aeneus types, peppers, panda and concolor).

 

Thanks Sara. I am keeping about 120 Corys though hahaha so I know about their behaviour and needs. I have these green ones for some years now (in different tanks and with different companions) but they have behaved completely different than other Corys (some aeneus types, peppers, panda and concolor).

I have to admit that this is re-assuring. I have been so confused at how hidden they stay. They are so cute when they come out, but don't do so often. Maybe I will just get bronze and slowly build that school. If they school together great, if not - Iwill have some corys I can actually see.

 

I have to admit that this is re-assuring. I have been so confused at how hidden they stay. They are so cute when they come out, but don't do so often. Maybe I will just get bronze and slowly build that school. If they school together great, if not - Iwill have some corys I can actually see.

Didn't want to scare you !!! Sorry if I did. Still think it is quite strange.
These guys are te biggest I own (and teally looking awesome) but are acting like scared little children.
Maybe other members have other experiences and it could be they are of a very different strain. Heard about the issue earlier though !

I'll try to place a pic this evening (afternoon now overhere).

 

I have tried to get pictures several times today because they have actually been out occasionally but without success

They were sold to me as "green & ? Aeneus". I don't recall what the ? Was. Maybe gold?

 

They were sold to me as "green & ? Aeneus". I don't recall what the ? Was. Maybe gold?

If they're green-gold then that's another species, C.melanotaenia.
I know it's hard getting good pics, I bribe mine with some food dropped right at the front of the tank, then I sit quietly & wait, then while they're busy I get off as many shots as I can before they clock me

 

They were sold to me as "green & ? Aeneus". I don't recall what the ? Was. Maybe gold?

Wasn't it "emerald" ?

Could make some pics of mine




So hard !!!

 

Dang. What's different about them? Like they aren't active?

 

Dang. What's different about them? Like they aren't active?

They never lay still for a second (all pics are blurred cause of their movement).
Moving a finger : they hide !!!

 

They never lay still for a second (all pics are blurred cause of their movement).
Moving a finger : they hide !!!

Hmm. Do you walk in screaming LOL? They seem shy

 

Hmm. Do you walk in screaming LOL? They seem shy

Hahaha

 

Hahaha

How big is your tank?
I am actually thinking about getting a Cory tank for either albinos or peppered. It's going to be a 40gal breeder I think. But back to the topic. How are they doing now??!

 

Think we'd better stop hijacking Mom2some 's thread. Sorry for that !
I'll send you a PM Sarah

 

Think we'd better stop hijacking Mom2some 's thread. Sorry for that !
I'll send you a PM Sarah

Yea sorry lol

 

I've read that the rays in the dorsal fin tell those species apart - is that right?

The recommended breeding ratio is two or three males to a female (opposite of livebearers).

Very interesting!



Edited to include "those species" as Corydoras aenus and Brochis splendens.

 

I've read that the rays in the dorsal fin tell those species apart - is that right?



Very interesting!



Edited to include "those species" as Corydoras aenus and Brochis splendens.

Yep and shape !

 

Man, this thread has grown since last time I checked it... I see you guys cleared it up better than I could have