bronze cory eggs

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phaedraeos

Feeder Fish
MFK Member
Dec 29, 2006
200
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boston
is it possible for corys to lay infertile eggs, as in they were never fertilized to begin with? this is my female's first go at it, and i'm wondering what the chances are of them hatching. i'm pretty sure that her partner is male, but not positive.

thanks!
 
Yes they can lay eggs, and the male sometimes does not fertilize the eggs. Most corydoras do better in a trio 2 male to 1 female. Post some pics of your corys and your setup though! :thumbsup:
 
yeah, i heard the 2:1 ratio too. thing is, i wasn't going for eggs - it just happened! the 2 bronzes are actually in my fry tank because the female was so grotesquely obese. this was the only tank i could put them in that didn't have any other bottom feeders, so that i could actually put the corys on a diet.

i've also read about how i should scrape off the eggs and put them in a breeder net until they hatch. i'm just going to let things be though, and see how they turn out. we might be moving in a few months anyway, which would mean finding new homes for most of our fish. it would definately be easier to do that without 30 or so new corys!

here are pics of the eggs, the tank, the female, and the potential male in that order. do you guys think the male is really a male?

cory eggs.jpg

fry tank.jpg

fatty 4.jpg

boy i think.jpg
 
It does appear to be a male and female. They will do better in a bare bottom tank where the parents can be removed, and the eggs can be treated for fungas.
 
No, fungus on the eggs will mean they will die. Once fertilized you cannot naturally unfertilize them.
 
About 12 hours after you notice the spawn, carefully remove the eggs from the tank glass with a utility knife blade and place them on a small sheet of glass in a small container, a quart is a great plenty. If the eggs don't stick to the glass don't worry about it. Place an air stone in the container and a small drop of methylene blue to avoid fungus. Two days after placing the eggs in the small container I slowly start diluting the water with water from the spawning tank to eliminate the amount of methylene blue. When the eggs hatch very carefully continue to change the water (I'll even do 80-90%) with spawning tank water. A little java moss is nice and about two days later they'll use their egg sac and you can start feeding some APR for a couple of days followed by micro worms and then live baby brine shrimp and ground flake food. When I first starting with corys I only had guppy baby food (fine like flour) and that worked for first food. Hope this helps.
 
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