My Bronze Cory Laid Eggs Plz HELP!

Hey guys, I just noticed heaps of bronze cory eggs in my community tank! I didn't even realise I had female and males and that she was even pregnant! I love corys so I want them to survive!!! what do I do ??? Plz help!! As I know they eat their eggs asap.
Sorry for the bad photos, I need to do a water change and clean my glass.

 

Congrats ! Scrape them of and put them in a container with an airstone and then read the stickies about this subject on this forum.

 

Literally a container with an air stone is enough?

 

To let them hatch it is.
A small tank when available is too

 

A container of the tank water. The same water from the main tank would be my suggestion.

Be aware these fish can have 18 eggs each female every 20 minutes for 2 or more hours 3 times a week.

Getting the eggs is just the beginning.
If you do absolutely nothing and have an established tank full of dirty ornaments and old filters you will have one or two survive every year. You will not see the fry until they are juveniles and one day you might see a young corydoras.

I am more than happy to help you try to raise as many as possible. Just be ready to fail a couple of times before you are successful in raising a handful.

Roll the eggs with your fingers when new or after 5 minutes use a razor blade before they firm up . A little practice will see you getting 80% of the eggs every 20 minutes.

I have had a female lay eggs 2 inches from my hands as I did a water change.
Often a water change is a trigger to spawning.
Its interesting you are planing a change tomorrow .

Is there a thunderstorm outside? That’s another trigger.

 

To let them hatch it is.
A small tank when available is too

They hatch in 3 to 6 days correct?

 

If they are fertile and don’t get fungus, yes they hatch in about 4 days.
Do you know of the tee position?
Thats worth seeing.

 

A container of the tank water. The same water from the main tank would be my suggestion.

Be aware these fish can have 18 eggs each female every 20 minutes for 2 or more hours 3 times a week.

Getting the eggs is just the beginning.
If you do absolutely nothing and have an established tank full of dirty ornaments and old filters you will have one or two survive every year. You will not see the fry until they are juveniles and one day you might see a young corydoras.

I am more than happy to help you try to raise as many as possible. Just be ready to fail a couple of times before you are successful in raising a handful.

Roll the eggs with your fingers when new or after 5 minutes use a razor blade before they firm up . A little practice will see you getting 80% of the eggs every 20 minutes.

I have had a female lay eggs 2 inches from my hands as I did a water change.
Often a water change is a trigger to spawning.
Its interesting you are planing a change tomorrow .

Is there a thunderstorm outside? That’s another trigger.

Omg I just found more behind my filter on the side glass! I'm so over whelmed idk what to do haha. Yes, I want to keep as many as possible. They have been sitting their for an hour or so I reckon, they wernt in there this morning when I fed them though! I might have to try with a razor blade ? And are the babies that small?

And no I regularly clean about 25% of my tank water, I have a 52L, unfortantly. With a few neons, guppies and 2 clouds. The glass is just dirty!!

It's normally hot here in nsw, but it was an average day today, but I think it was raining a couple of days ago???

 

Feed the adults. Keep them alive. Keep the adults in a cycled tank and you will have more eggs than you know what to do with.
Use these eggs to become familiar with moving them . Breaking a few and having many get fungus. Getting your heart broken. It’s all part of the game.

If you have the time and can change water often you can raise these guys up to a sellable size.

The problem is bronze corydoras are easy to breed . Petbarn has them for sale at what $9 to $15 Australian. Other species like the lazer corydoras and the aldolfi are harder to breed and sell for a lot more.
A mum and dad shop might give you $2 each store credit?

You would be advised to research using a few drops of meth blue ( methylene blue ) .
This stuff is poisonous and you have to change water as they hatch to avoid killing the fry. The meth blue will stop eggs getting fungus.
yes some may survive without meth blue.

I use these hang on front breeding boxes for corydoras eggs.

You ask about size.
They are big enough to eat whatever food they find on a dirty sponge filter. They don’t need special foods if they are in a dirty tank. However as soon as we put them in a sterile breeding box we are there only source of food.

I have experimented with dirty breeding boxes and dirty leaf litter on the floor with some success.

In an ideal world you would have a micro worm culture ready to feed the young but as stated they can eat whatever dry foods adults can’t reach in corners and under ornaments etc.

 

In the bronze machine I run a monster blob of java moss. Yes, it takes up most of the tank.


The moss serves many functions, cover, biofilm for hatchlings, a place for hatchlings to hide, etc.
With my tank set up that way they breed out of control.
Here is a picture of "bronze substrate"


Last time I had to unload the tank, there were more than 300 sellable bronzes in the tank. You do not want to know the size of the tank .

Oh and the pretty blue one is a trick of the light. It is a normal color in real life.

 

If they are fertile and don’t get fungus, yes they hatch in about 4 days.
Do you know of the tee position?
Thats worth seeing.

Nope?! What is the tee position??? How they hatch ?? I did watch a video on YouTube

In the bronze machine I run a monster blob of java moss. Yes, it takes up most of the tank.

The moss serves many functions, cover, biofilm for hatchlings, a place for hatchlings to hide, etc.
With my tank set up that way they breed out of control.
Here is a picture of "bronze substrate"

Last time I had to unload the tank, there were more than 300 sellable bronzes in the tank. You do not want to know the size of the tank .

Oh and the pretty blue one is a trick of the light. It is a normal color in real life.

Holy moly! You ended up with so many! Covered your whole tank floor? Haha!
I love the bronzes because of the shimmer that goes through them, Albinos have that too!

Do the eggs get bigger as the corys grow? I swear they're getting bigger, hopefully the male fertilised! I only have 3, I'm guessing I have 2 females and 1 male.

Everyone has told me about Good food java moss is, but the problem is I can't find it anywhere in the aquariums here, idk ? So I bought some other live plant which I planted like a month ago, and it grows so slow and stalky. Not what I wanted.

Im hoping I can grow these eggs to a sellable size ! But this is my first time!

Thankyou everyone for all your information and comments !

In the bronze machine I run a monster blob of java moss. Yes, it takes up most of the tank.

The moss serves many functions, cover, biofilm for hatchlings, a place for hatchlings to hide, etc.
With my tank set up that way they breed out of control.
Here is a picture of "bronze substrate"

Last time I had to unload the tank, there were more than 300 sellable bronzes in the tank. You do not want to know the size of the tank .

Oh and the pretty blue one is a trick of the light. It is a normal color in real life.

And im guessing you had like a 52L?

 

And im guessing you had like a 52L?

Good eye, it is a 15 gal. No one recommends 300 bronzes in a 15 gal even with a HOB.
A rough guess as I can't remember the exact HOB on the thing from Aquarium Advisor is

Your aquarium stocking level is 1017%.

So yeah, I sold several batches of 75 when I guessed the tank might have over 100 cories in it. turns out I was off by a factor of 3.
No casualties from that density. Man did they go through food.

So good luck over stocking and then selling.

 

My first batch of eggs disappeared idk if they hatched or what, but I cannot see fry.
So I just scrapes off some from my Walls, they look very dark... r they supposed to be this colour ? From a bronze cory.

 

My first batch of eggs disappeared idk if they hatched or what, but I cannot see fry.
So I just scrapes off some from my Walls, they look very dark... r they supposed to be this colour ? From a bronze cory.

Yes they'll hatch any moment.
The fry is tiny and hides very well !

 

Yes they'll hatch any moment.
The fry is tiny and hides very well !

So they go darker when they're about to hatch?? I thought that. And yeah my other batch must of hatched I assume, do they stay in the bottom ?

 

So they go darker when they're about to hatch?? I thought that. And yeah my other batch must of hatched I assume, do they stay in the bottom ?

Yes they stay close to dark edges and spots and are quite invisible.

Here a pic how I "decorate" my fry tanks.

A very thin layer of sand + a spongefilter a heater (Bronze will do with normal roomtemperature) and.some oakleaves for cover a.s.o.

I start feeding a few days after hatching (they live of their eggsac the first days)