Cory Eggs - Secret to Success?

James0816

James0816

AC Members
Feb 14, 2007
3,413
3
38
What is the secret to success in getting eggs to hatch out? I've tried several different means and have not had a single fry. My latest attempt was to scrape the eggs off the glass into a very small bowl w/ java moss. Twice a day, I would change the water out. I did this by pouring it out into the tank and slowly filling it back up. I would do this about three times. This I thought would not only give fresh water but also create movement to "roll" the eggs around.

Nothing.

I'm getting eggs on a weekly basis now right after water changes. Would be nice to get some fry.
 
Do you have just the 2 cories that are creating eggs? If so, you may not have a male and female, which would explain the lack of baby cories. A group of 5-6 cories would ensure you'd have both males and females.
 
petluvr said:
Assuming you have a male/female are your eggs turning white or getting fuzzy looking?
Click to expand...

Most of them are white. There are a few that turn tanish. I believe these ones are not viable.
 
The eggs need a lot of water flow. For my albino cory eggs I collected them and put them into a mesh media bag, tied it shut and hung it in the front of the tank directly in the filter flow. The current keeps them from fungusing.
 
Hi James.
I used to breed a lot of ornamentals including corydoras. Here's how. Have a clean 10-15 gal tank with pea sized pebbles at the bottom to provide shelter to new hatchlings. Condition the breeders by separating the males from the females for a week or so. Choose only gravid females and place 2-3 sets (1 female:2 males per set) into the tank. The females will lay the eggs on the glass in clutches every several minutes or so. When the spawning ritual is over or there are enough eggs sticking on the glass, remove all the breeders otherwise they will eat all the eggs. Don't disturb the eggs, just leave them be. Aerate the eggs lightly until they hatch. When free swimming, feed the fry with brine shrimp and extra fine food. Hope this helps. Good luck.
 
I just found a leaf full of corydoras eggs. After reading up on a variety of practices, I decided to clip the leaf and move it to a small, plastic tank. I've got a small aeration stone going, and a lamp over the tank to keep it warm (and a thermometer to check to make sure it's not too warm). I attempted to pull off the non-viable eggs (there were about six white ones, in about 200 golden coloured ones). I also added a small drop of anti-fungal. No idea if anything will come of this, but I was super excited by the discovery as I cleaned my tank today! Wish me luck!
 
ok...after water change, have about 30 eggs collected. I placed them in a breeder net and have it positioned in front of the HOB output's. It's not a major flow, but I can see the eggs slightly "flowing" in the current. Unfortunately, I ripped two of them while removing.

Funny thing as well...this morning I noticed about 20 more. Will scrape them off this evening when I get home and add them to the others. I also threw in a few pond snails in the basket to see if they would take care of the non viable ones. So far they all look brown. Not sure about the new batch yet.

Does this sound like enough current or do I need to increase it?
 
You must log in or register to reply here.
AquariaCentral.com
Top Bottom