Breeding corydoras

[BigJfish12]

ok thanks but that's sort of annoying

 

[AlexT]

They will be fine in a 65l but I would suggest nothing with them and large weekly water changes - and preferably twice a week. They produce a high bio load.
Yes they will uproot plants until you have re-arranged the tank to their liking, and after that if they get bored with the arrangement they will let you know

I know with mine, at feeding time, they leave no grain of sand unturned, perhaps this is where the plant problems can happen? If I see any of mine maliciously messing with my plants, I will definitely be having a word with them.

 

[BigJfish12]

Good idea @AlexT!

 

[Colin_T]

I never had a problem with them uprooting plants. If they have plenty of hiding places they shouldn't bother the plants. I used pvc pipe for them.

 

[BigJfish12]

Thanks everyone for your help

 

[Naughts]

Not algae eaters but some people have suceeded breeding pygmy cories, you could have a species- only breeding colony in a 65l.

 

[Aqua67]

Years ago I had a bronze cory explosion in a 46 gallon bowfront tank in which I kept a blue gourami as well as guppies. I did nothing special to get these cories to breed. When the 12 or so cories that I had got old enough, and I just happened to do a water change with slightly cooler than tank water on an afternoon in which we were hit with a thunderstorm, voila, cory eggs all over the glass soon afterward. I went from a dozen cories to well over 70 cories and I was thankful that I had a large enough tank to keep everyone in. I did find a local petshop to take many of the young cories.

 

[outofwater]

Mine lay eggs about once or twice a month, sometimes after a water change, sometimes just because, I guess. But I haven't had any fry. Either they're not getting fertilized, or the cories, the neons and rhe snails are getting to the eggs before they hatch

 

[Bazouteast]

Has anyone managed to coax Bronze Corys to spawn on a specific surface, i.e. like Angelfish prefer a slate set at 60 degrees to the horizontal? I want to induce spawning on an artificial medium that can be easily removed to a nursery tank. Has anyone had any success using slates, flower pots or mops? I am trying to avoid live, broad-leaved plants.

 

[CassCats]

Has anyone managed to coax Bronze Corys to spawn on a specific surface, i.e. like Angelfish prefer a slate set at 60 degrees to the horizontal? I want to induce spawning on an artificial medium that can be easily removed to a nursery tank. Has anyone had any success using slates, flower pots or mops? I am trying to avoid live, broad-leaved plants.

A place with strong flow. Use a powerhead directed at glass or something flat and they will lay *most* of the eggs where the strongest flow is. Glass is easier where you can remove them gently by hand and move them to a nursery that way. Mops can be used just fine too. Just place them where the flow is strongest.

 

[Bazouteast]

Many thanks. Most helpful.

 

[Bazouteast]

One more thing, if I may. I have spent the last year breeding a shoal of over 100 Lamp Eyes (and they look stunning!). Lamp Eye eggs are quite robust and can be carefully picked from a mop with wet fingers, and placed in an incubator tub. Would you say Cory eggs are resilient enough to withstand such handling?

 

[Innesfan]

I don't know about fingers, but I've coaxed cory eggs off the glass with a brine shrimp net and they all hatched.

 

[CassCats]

One more thing, if I may. I have spent the last year breeding a shoal of over 100 Lamp Eyes (and they look stunning!). Lamp Eye eggs are quite robust and can be carefully picked from a mop with wet fingers, and placed in an incubator tub. Would you say Cory eggs are resilient enough to withstand such handling?

Most of them are fairly robust, yes. You can roll them off the glass or pick them off the glass with your nails too, they'll be slightly sticky and a little around same texture as tapioca balls, a little more fragile though. Think of them like popping Boba in fragility.

 

[Bazouteast]

Thank you very much for your help. In 2024 I developed a bomb-proof system of harvesting and incubating Lampeye eggs, with great success. It sound like I might be able to adapt that process.
Thanks again.