30+ Cory Eggs!

[hacket]

We just bought a pair of bronze cories, and apparently they are in love. Bought them last week, and woke up this morning to about 32 eggs plastered on the glass, by the bubble stream. I'm shocked the pleco didn't get them, or the zebras! It sort of makes sense, because they were being very affectionate last night, in the corner of the tank.

I will be getting some pics up soon. I have never tried raising any fish from eggs before so this is new to me.

Initially we placed a divider made of plastic canvas in the tank to keep the fish away from them while we went to the store to find something to keep them in. We decided on a breeding container that hangs outside the tank and filters water from the tank into and out of the container. I didn't want to set up a new tank due to cycling issues. We have them in there and there is a decent amount of water moving over them. They all are looking good, nothing white so far.


The only thing I am noticing is that there is a small amount of sediment settling on the eggs, it's coming from the tank. Just a few specks, nothing too thick. Any concerns?

 

[Mebster]

Lucky guy. One week and already you've got eggs! Congrats mate. And best of luck with fatherhood/motherhood

 

[hacket]

Here is the main setup -

Here is a closeup of the eggs. All the sediment is from when I had to take my filter out of its casing, due to the pleco try to escape. That's another story...

This photo was taken 10 minutes ago, and as you can see, no fungus yet.

 

[Akasha72]

you lucky, lucky thing!! I've been waiting months for eggs ... tried feeding bloodworm, tried cold water changes - nothing!

I'm very jealous

 

[Inchworm]

Hi hacket,

Looking at the sediment accumulating on the bottom, my first thought is that there doesn't appear to be enough water circulating where the eggs are. If not, adding an airstone will help.

 

[hacket]

Inchworm,

It is possible, yes, but I think what happened was that a bunch of sediment got sucked into the breeding tank when I adjusted my main tanks filter. It comes in on the left side of the container, and gets pushed to the right side and settles, because that's how the flow is going. I have since sucked most of it out with a baster, and am not having it build up again. There looks to be pretty decent water flow through the entire container.


They are hatching! I can't believe how fast they squiggle around the container! We have 4 so far, with plenty of viable looking eggs left to hatch. I picked out a couple that were getting fuzzy. Boy I am trying not to get too excited here...


So should begin feeding them a little food tomorrow? We have Hikari First Starts, or something along that line....it's baby fish food. I will just swirl a little into the container, and suck out any leftovers after a bit..

 

[Inchworm]

Hi hacket,

Congratulations on your new fry.

You don't have to feed them at all for their first 24 hours because they will be absorbing their yolk sacs during this time. I've used the Hikari product and am pleased with it. Another very good source of their first food can be obtained by lightly rinsing out your filter over them. The result is an abundance of microorganisms that are tiny and quite nutritious.

Let me also suggest that you read this article about breeding corys. It will give you some good ideas.

http/www.fishforums.net/index.php?/topic/165155-the-breeding-of-corydoras-catfish/

 

[hacket]

Thank you Inchworm.


I am sad to say that every single fry escaped into the main tank through the breeding tank overflow.... there were well over a dozen hatched when I went to bed ! Now there is nothing in the breeding container...not even an egg, which means they all hatched. I'm not able to see any of the fry in the main tank either, so I'm assuming they got sucked up in the filter or eaten. I am trying not to beat myself up too much about this.

On a more positive note, I did find an older fry in the main tank last night, although he has disappeared today, probably hiding. Maybe he will show up again. But that means they have bred more than once already!

If anything it's made me want to try again, and put the breeding tank divider in the container. This should keep them in the bottom of the container. Stay tuned for another thread soon enough when I get them to breed again...*sigh*.

 

[Erik]

You may want to put a pre-filter on your filters intake to keep them from getting sucked up. But my guess is they headed straight to the bottom and may still be there. Try crushing up some sinking flake food and feed a little a couple of times a day. Also check your waste water when you do water changes so you're not throwing any out. You might be suprised as to how many survive natural hatching.

 

[Mebster]

You may want to put a pre-filter on your filters intake to keep them from getting sucked up.

I've been wondering if something like this pre-filter existed. Any links? Does it impact the main filter though as I was planning on leaving it with it all the time as you never know when you're going to have fry with livebearers (ok maybe you do..)

 

[Inchworm]

It's just a sponge filter that you can put over the intake tube. In addition to keeping the small fish from being sucked in, it will provide a good place for micro organizms to grow. The fry will just pick them off for a good meal.

http/www.aquariumguys.com/aquarium-sponge-filters.html

http/www.angelsplus.com/FiltersSponge.htm