Tropical Fish Keeping - Aquarium fish care and resources

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Fellinosse 10-13-2012 12:43 AM

Corydoras Plateaus Breeding Question!
Hello all,

I've been combing these boards for quite a few months on and off, and I finally cannot find an answer to my question, so I'll throw it out to those folks with more experience breeding cories.

I have a special tank (20 long) setup for breeding these catfish, and I've been able to collect three separate clutches of eggs over the past few months. Unfortunately, I haven't been able to keep the fry alive for more than a few weeks, but I'm working on that!

I absolutely love these guys, so I was a bit upset when my male in the breeding pair died rather suddenly. The rest of the cats are doing fine, and my question is- Will the female pair off with another mature male in the future? I just bought a fresh group of six more cories (for my 55) and it's tough trying to sex them. I'm hoping I can just pop in a replacement in a few weeks!

Thoth 10-13-2012 08:20 AM

Cories dont pair off, they have group mating. You will want to have at least 2 males and 2 females in a group (5 or 6). Multiple males will chase the female around, jockeying for her to accept his sperm. I have never had to add a male to one of my breeding groups but I don't see a problem. As long as the new male is mature, he will contribute. Sexing Cories can be difficult on some individuals and the only way to confirm their sex is to wait until just before they mate/during mating.

Fry survival is a balancing of clean water and having enough food available but there are other factors. I am currently struggling with my C. similis fry. It is the first spawning and I think it is just that the female is young. I hope that this will improve as I have noticed that the fry survivability increase after the initial spawning occurrence with the other Cories I have bred.

I have been feeding my fry First bites , Micro pellets, Micro worms and flakes if you were needing food info.

Good Luck :-P

BridgieB 10-13-2012 08:22 AM


I am not an experienced breeder.... as a matter of fact i have my first batch of egg's ever now, from my albino cory's.

I myself have been reading and trying to digest as much info as i can on breeding these. I am not sure if it is true but i did read somewhere that when they mate it is for life. With my 3 albino's it is clear i have 2 females and one male. The females are quite bigger and more plump where the male is smaller and more slender. I also have noticed the ventral fins of the females seem more rounded and the male more pointed.

Good Luck with your cory's!

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