Corydoras eggs what do I do?
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Thank you guys so much for the support i really appreciate it. Thanks mattgirl for that wonderful information
Also I was showing one of my friends them and I noticed that there were two!! Some of the other eggs that have hatched, or wiggling (like u can seem the moving in the egg). Crazy cool!!
Also I was showing one of my friends them and I noticed that there were two!! Some of the other eggs that have hatched, or wiggling (like u can seem the moving in the egg). Crazy cool!!
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Ok guys so all of the healthy eggs hatched (6), and I just fed them Hikari First Bites and they're already congregated and munching on that stuff!!
Meanwhile, my Female Corydora is giving the same signs as she did last time she was gonna lay..... Another batch perhaps?? Now that would be cool lol
Meanwhile, my Female Corydora is giving the same signs as she did last time she was gonna lay..... Another batch perhaps?? Now that would be cool lol
You'll find that cories tend to go into full on reproduction mode once mature and when the water temperature drops a little bit, such as when doing water changes. The influx of cooler water triggers their egg laying instinct. Cories tend to breed like rabbits thanks to weekly water changes which can be fun....and a great excuse to buy another aquarium...or three 
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UPDATE: So the fry are doing really well (I think lol). I've had them on first bites for a while. When is it the right time to put them on BBS?
Lol just realized how panicked I seemed at the beginning of this thread. To be fair I wasn't expecting them lol. It was less of panicked more of uncontrollable excitement that caused my brain to think I was panicking lol.
Lol just realized how panicked I seemed at the beginning of this thread. To be fair I wasn't expecting them lol. It was less of panicked more of uncontrollable excitement that caused my brain to think I was panicking lol.
Congratulations Bruinfishkeeper1 on getting them to one week old. A good start.
Corydoras fry are big enough at day one to eat baby brine. The only issue is baby brine tend to swim at the surface and corydoras swim on the floor. B B will swim towards a light source if that helps get the brine shrimp down to the bottom of a deep tank before the BB run out of energy and die in fresh water. Put a light source down low if you need to in a deep tank.
Micro worms sink and wiggle for next time?
A warning should you keep these fry alive for a few months. Keep feeding dry food daily so they continue to eat it. It’s a mistake to have adult fish that only recognise live food as food. Believe it or not it can happen, even with guppies that we normally think of as a fish that eats anything.
Well done.
Corydoras fry are big enough at day one to eat baby brine. The only issue is baby brine tend to swim at the surface and corydoras swim on the floor. B B will swim towards a light source if that helps get the brine shrimp down to the bottom of a deep tank before the BB run out of energy and die in fresh water. Put a light source down low if you need to in a deep tank.
Micro worms sink and wiggle for next time?
A warning should you keep these fry alive for a few months. Keep feeding dry food daily so they continue to eat it. It’s a mistake to have adult fish that only recognise live food as food. Believe it or not it can happen, even with guppies that we normally think of as a fish that eats anything.
Well done.
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Thank you so much for the kind words it really goes a long way!!
As for my tanks I use frozen bbs. I actually just realized that my fry were that old so I immediately gave them some. Moving forward what else should i give?? (In terms of the current fry i have right now).
I have a friend who has some microworms in his tank with no fish (for now). Ill ask him for some
I also seem to have little Seed shrimp in there, that I coulda sworn I saw them eat one.
I think there's about 5 in there rn, and they're pretty big lol.
They get their 27g upgrade tommorow!!
As for my tanks I use frozen bbs. I actually just realized that my fry were that old so I immediately gave them some. Moving forward what else should i give?? (In terms of the current fry i have right now).
I have a friend who has some microworms in his tank with no fish (for now). Ill ask him for some
I also seem to have little Seed shrimp in there, that I coulda sworn I saw them eat one.
I think there's about 5 in there rn, and they're pretty big lol.
They get their 27g upgrade tommorow!!
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What I did was take a shrimp pellet and crushed it. Than spilled it in. Did that a few times a day with crushes flakes. Corys do eat. I never used bbs or any live foods.
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I started my cory fry out on microworms and after about a week or so graduated to crushed flakes and pellets. I actually made cory fry food by crushing some of all the different foods I feed my fish. I sifted it until I had a fairly fine powder. I would mix a tiny bit in a bit of water and pour it in so it would sink to the bottom.
The worms your friend has in his tank are not the microworms we are mentioning. These can't live long term in the tank. If you plan on doing this again you may want to look into getting a microworm culture. For me, they are one of the easiest live foods to grow. Not totally necessary but I think it gives them that second boost of protein right after the egg sack is gone.
The worms your friend has in his tank are not the microworms we are mentioning. These can't live long term in the tank. If you plan on doing this again you may want to look into getting a microworm culture. For me, they are one of the easiest live foods to grow. Not totally necessary but I think it gives them that second boost of protein right after the egg sack is gone.
Frozen baby brine would be the size of sand when de frosted . Adult frozen brine shrimp are 1/4 to 1/2 long and far to big.
A small tank of 5 ish gallons is easy to keep clean with multiple water changes as you feed multiple times per day. I am not sure how you will manage that in a 27 gallon? It should be ok as long as you have a turkey baster to remove any uneaten food before it begins to rot.
A link to a local guy in my club.
He and his wife have many corydoras videos.This one shows the micro culturing technique used down under. I now use instant potato not white bread.
A small tank of 5 ish gallons is easy to keep clean with multiple water changes as you feed multiple times per day. I am not sure how you will manage that in a 27 gallon? It should be ok as long as you have a turkey baster to remove any uneaten food before it begins to rot.
A link to a local guy in my club.
He and his wife have many corydoras videos.This one shows the micro culturing technique used down under. I now use instant potato not white bread.
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And I use oatmeal. I don't think the base matters much since they really don't eat it. They eat the yeast. I had a culture I hadn't fed in months. I was going to toss it since I didn't need it. Much to my surprise the worms were still alive. I dropped in a bit of yeast and they got really active again.
This reminds me. I really need to start a new one since this one isn't producing like it would need to be if I were feeding fry. One day I may collect some of the eggs that my little girls gift me with almost daily. I will need their first food ready for them. All this talk of cory fry has got me wanting to hatch some babies.
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Ok sounds good everyone thanks for the microworm tips I'll definitely try them out. I honestly kind of feel like growing these guys out in my community tank.
What size is the safest where I can put them in.(the stocking 2 honey gourami's, endlers, cpds, hillstream loaches, an adf and the cory's
What size is the safest where I can put them in.(the stocking 2 honey gourami's, endlers, cpds, hillstream loaches, an adf and the cory's
From personal experience once you add juveniles to a group of adults they will accept the youngsters no issue. However it becomes hard to target feed the little ones. They do not grow as well . With just a handful there would not be the hormone issue stopping growth that you would see without multiple water changes with a much larger group of juveniles. But you will have difficulty feeding.
Corydoras have spines in their gills that they project when cranky . An adult fish or teenage boy that try’s to swallow them gets a mouthful of spines.
There is a toxic poison on the spines of some species as well. This can in some cases lead to the death of both fish when the fish is stuck in the mouth. At best the bigger fish spits it out never to try that again.
I have seen one baby appear in several tanks per year. That gives you an idea of the survival of the young without fry food or protection.
I have never seen the ADF in person as it’s ilegal in Australia I believe? I have no idea how much of a meat eater they are? Most frogs eat meat.
The other species in your community tank don’t seem to be hunter’s apart from the gourami who has a small mouth ( maybe) .
The longer you can wait the sooner the young will reach size. Size enough to complete for food.
Once added they will be very hard to catch. If they don’t get food you will feel sad ,especially if the worst thing happens.
Corydoras have spines in their gills that they project when cranky . An adult fish or teenage boy that try’s to swallow them gets a mouthful of spines.
There is a toxic poison on the spines of some species as well. This can in some cases lead to the death of both fish when the fish is stuck in the mouth. At best the bigger fish spits it out never to try that again.
I have seen one baby appear in several tanks per year. That gives you an idea of the survival of the young without fry food or protection.
I have never seen the ADF in person as it’s ilegal in Australia I believe? I have no idea how much of a meat eater they are? Most frogs eat meat.
The other species in your community tank don’t seem to be hunter’s apart from the gourami who has a small mouth ( maybe) .
The longer you can wait the sooner the young will reach size. Size enough to complete for food.
Once added they will be very hard to catch. If they don’t get food you will feel sad ,especially if the worst thing happens.
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UPDATE: alright guys we're still going strong with the cory fry.
I moved them from a little kitchen storage container that was probably like 0.4g or something maybe even less to a 3g cube tank.
As I was moving them, when i took out the leaf litter I noticed that there wasn't just 4-6 fry. There was like 15!! So thats cool to hear.
They're currently on bbs and crushed shrimp pellets.
In their tank is an airstone, a moss ball, and IAL leaves.
Moving forward, does anyone have any other tips?
I moved them from a little kitchen storage container that was probably like 0.4g or something maybe even less to a 3g cube tank.
As I was moving them, when i took out the leaf litter I noticed that there wasn't just 4-6 fry. There was like 15!! So thats cool to hear.
They're currently on bbs and crushed shrimp pellets.
In their tank is an airstone, a moss ball, and IAL leaves.
Moving forward, does anyone have any other tips?
If you have a tangle of Java moss or other old stem plants or anything old add like leaf litter that will have food on it. I know corydoras are not algae eaters but at this age they will find little things to eat on anything old. An old dirty sponge filter is a recognised fry food source.
It would seem you have no filter. No worries I have raised fry for weeks without a filter.
The human ( you ) are the filter. Remove old uneaten food and a little poop. A turkey baster is very handy and makes it easy to avoid sucking fry. Change a tiny bit of water at every feeding. Just a jug / mug of water out and a jug / mug of water in multiple times per day will avoid any big changes in parameters or temperature. You definitely don’t want to do big 45% water changes at this stage.
In a heated fish room it easy for me to say keep all buckets of change water at the same temperature.
You will have to work out how you are going to have a bucket of water at the same temperature for these multiple tiny jugs of water changes.
Betta breeders sometimes have a large empty tank with the heater and small container with the fry floating on top of the warm change water.
Temperature for changing is not that critical “ they say “ but I have no experience with not having buckets in a hot fish room.
Change a little and often and you should be OK fingers crossed.
It would seem you have no filter. No worries I have raised fry for weeks without a filter.
The human ( you ) are the filter. Remove old uneaten food and a little poop. A turkey baster is very handy and makes it easy to avoid sucking fry. Change a tiny bit of water at every feeding. Just a jug / mug of water out and a jug / mug of water in multiple times per day will avoid any big changes in parameters or temperature. You definitely don’t want to do big 45% water changes at this stage.
In a heated fish room it easy for me to say keep all buckets of change water at the same temperature.
You will have to work out how you are going to have a bucket of water at the same temperature for these multiple tiny jugs of water changes.
Betta breeders sometimes have a large empty tank with the heater and small container with the fry floating on top of the warm change water.
Temperature for changing is not that critical “ they say “ but I have no experience with not having buckets in a hot fish room.
Change a little and often and you should be OK fingers crossed.
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Ok sounds good my setup has lots of seed shrimp and microorganisms on the moss ball and IAL. Im might squeeze a little bit of "gunk" out of my prefilter sponge in one of my tanks.
As far as wc's, before each feeding a take out the other fish food and i change about 10% of water (maybe less). Then every two days or every 3 days ill do a 30-40% wc.
Temp wise my room temp is 71-73 F (somewhere in that range, and the growout tank and the wc water is not heated
As far as wc's, before each feeding a take out the other fish food and i change about 10% of water (maybe less). Then every two days or every 3 days ill do a 30-40% wc.
Temp wise my room temp is 71-73 F (somewhere in that range, and the growout tank and the wc water is not heated
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Congratulations on successfully hatching out so many fry.
If you are going to run an air stone you may want to consider running a small sponge filter instead. It will do the same thing the air stone does but will also be a place for food to grow for your little guys and girls. It is very possible the things you have moved from your other tanks to this one will have bacteria on them and will help colonize on/cycle this tiny tanks sponge filter.
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Hey guys, thanks for the previous support!!
So I guess I am at 12 days now which is very exciting
No deaths and all the fish are thriving. A few days ago they were being weird and all sitting on the surface of the floating pothos leaf that I for some reason still have in there. I heard it's because they are just trying to figure out their respiration methods.
Now they are perfectly fine and are all doing great.
I guess my only question is is that how long is their growth process? Like how long will it take for them to get to the size of those little juvenile corys that we see at stores?
So I guess I am at 12 days now which is very exciting
No deaths and all the fish are thriving. A few days ago they were being weird and all sitting on the surface of the floating pothos leaf that I for some reason still have in there. I heard it's because they are just trying to figure out their respiration methods.
Now they are perfectly fine and are all doing great.
I guess my only question is is that how long is their growth process? Like how long will it take for them to get to the size of those little juvenile corys that we see at stores?
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Glad to see things are going well. I just went through the same process for the first time, too. I'm a few weeks ahead. I have 12 new corydoras that just moved into a 29 gallon today. I've gotten corydoras babies before, but never purposely. If they can live in a filter, I should've guessed they'd be pretty resilient in a clean tank. All, but one (younger than the rest) are big enough to go into the 55g, but I thought they should have their own space.
I noticed the growth of mine sped up when I increased water changes. I was taking out the gunk and leftover food and changing smaller amounts, when I started changing a nice chunk everyday their growth exploded. Even the last 2 days, you can see big changes over a 36hr period in size.
I noticed the growth of mine sped up when I increased water changes. I was taking out the gunk and leftover food and changing smaller amounts, when I started changing a nice chunk everyday their growth exploded. Even the last 2 days, you can see big changes over a 36hr period in size.
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Yes I’m with you 100% on this! Fry and young fish produce something that will stop the growth of other fish. More so when there the same age fish but from different clutches. I get shot down regularly on discus sites for this. Nobody believes it hormones so now I don’t say hormones I just say something.
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It is a shame we have to sometimes sugar coat our words to have them accepted.
Thankfully I've not been shot down here when mentioning the growth hormones. So long as we can get the importance of fresh clean water across I guess the specific word isn't as important although I do try to be as specific as I can.
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Well guys....
Second batch came!!!
And WOW.
Like 250 eggs a ton of em
I think the next course of action is going to be to take them out and this time put them in Methenlyle blue. After they hatch ill transfer them to the fry tank.
I cant do the natural method since i cant go to my lfs rn. I might go tommorow but for now ill just do Methenlyle blue. How many drops of it in a small like 0.2-0.4g kitchen container?
Second batch came!!!
And WOW.
Like 250 eggs a ton of em
I think the next course of action is going to be to take them out and this time put them in Methenlyle blue. After they hatch ill transfer them to the fry tank.
I cant do the natural method since i cant go to my lfs rn. I might go tommorow but for now ill just do Methenlyle blue. How many drops of it in a small like 0.2-0.4g kitchen container?
Well....I use the natural selection way. My Cory eggs stay in the aquarium, those that do not get eaten by the BN or other fish may or may not hatch in the aquarium. The fry grow out in the aquarium...no breeding boxes or other aquariums. The fry move lightning fast if another fish approaches, just as they would do in the wild.
Around 4 years ago I started with 6 Bronze. They laid eggs weekly, I left them in the aquarium....within 6 months I had 30 healthy Cories from the original 6. They still reproduce now, no breeding boxes or anything special done. Most never hatch and get eaten but a good few do get to fry stage and they survive very well on normal food that the rest of the residents get. No chemicals, no special treatment or food.
Around 4 years ago I started with 6 Bronze. They laid eggs weekly, I left them in the aquarium....within 6 months I had 30 healthy Cories from the original 6. They still reproduce now, no breeding boxes or anything special done. Most never hatch and get eaten but a good few do get to fry stage and they survive very well on normal food that the rest of the residents get. No chemicals, no special treatment or food.
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Oh ok sounds good Flyfisha. Dosing wise i dont really know what do do so in about 2 days ill try to get all the Methlyne blue out of the tank. This is just expirmental and next time they lay eggs I'll try the natural way that i presented way earlier in the thread.
pagoda Im actually leaving some (about 30-50 eggs) in the aquarium to see what happens. Some of them are on plants, some of them on random glass, some of them on the glass where a lot of filter flow is present (im assuming these will hatch), and some wedged next to my sponge filter (no fish can get back there)
pagoda Im actually leaving some (about 30-50 eggs) in the aquarium to see what happens. Some of them are on plants, some of them on random glass, some of them on the glass where a lot of filter flow is present (im assuming these will hatch), and some wedged next to my sponge filter (no fish can get back there)
Keep a look out for wrigglers and if you have moss balls, they seem to congregate there when about 0.5 inches long....well mine do, anyway
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Yeah i have a moss ball, but thats in the other fry tank. Although i think they're getting big for that.Keep a look out for wrigglers and if you have moss balls, they seem to congregate there when about 0.5 inches long....well mine do, anyway
Ps: The current fry are doing very well, i was doing a bbs, crushed shrimp pellet hybrid but now i do a little bbs and some Hikari micro pellets, i think they work really well.
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UPDATE:
Ok guys so it's Day 3 of the hatching process and I left about 50 eggs in the tank and about 120 in my container.
About half of the ones in the tank that or on a leaf have fungus on them.
The other half in the tank are on the glass and a few have already hatched!! So we'll see how they do since it's a community tank, but I honestly anticipate a decent survival rate
As for the 120 in the container, none of them have any fungus and all seem like they might be hatching later today or sometime tomorrow. With the amount being hatched I'm going to actually get a 50gallon tub to eventually move them in.
QUICK QUESTION: Can i put my newborns in with my 2 week old healthy fry?
Ok guys so it's Day 3 of the hatching process and I left about 50 eggs in the tank and about 120 in my container.
About half of the ones in the tank that or on a leaf have fungus on them.
The other half in the tank are on the glass and a few have already hatched!! So we'll see how they do since it's a community tank, but I honestly anticipate a decent survival rate
As for the 120 in the container, none of them have any fungus and all seem like they might be hatching later today or sometime tomorrow. With the amount being hatched I'm going to actually get a 50gallon tub to eventually move them in.
QUICK QUESTION: Can i put my newborns in with my 2 week old healthy fry?
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Thought I could jump in with my personal experience with raising albino cory fry, but so many others beat me to the punch with excellent advice.
All I can say is what I did when my hubby discovered them spawning in the community, something I knew they had been doing but was never quick enough to save the eggs and since I had absolutely no experience at it, didn't feel I could manage it.
But once he saw the eggs, he wouldn't let it go. So on the fly I set up a hatching tank, a 3 1/2 gallon, put in an airstone and because I didn't have methaline blue on hand, put in some hydrogen peroxide.
I seriously didn't think it would work but dang if it didn't and I managed to raise the fry until they were big enough to be added back into the 55 gallon community.
And then they did it again and the hubby got on me to save the eggs. The first time the eggs were on a leaf and I just cut the leaf, this time it was on the side of the glass. I tried the credit card thing and broke most of the eggs. Then tried a razor blade and actually got enough to once again add to the on the fly hatching tank set up, again, airstone and hydrogen peroxide.
This time I did get fungus, I think mostly from the damage of removing the eggs from the glass, but I also got lots of fertile ones hatching. So now I have just moved the babies to a 10 gallon grow out tank and I don't care what the hubby say, I now have enough to make a very large size cory herd in the 55 gallon, no more egg gathering, lol.
The only down side to the whole experience is that the hubby now wants to raise panda cory eggs. So the 3 females in one of my shrimp tanks are now in yet another tank with 5 more young cory's I bought that I'm waiting to grow up enough to reach breeding age, I'm hoping I got a good mix of males in the new ones since you should have more males than females.
This is all in the air. I had luck with the albino's, but they are about the easiest to breed, I don't know if the panda's will be as accommodating. I hope they do, but if not, I'll still enjoy them, I really do have a love of the cory's.
All I can say is what I did when my hubby discovered them spawning in the community, something I knew they had been doing but was never quick enough to save the eggs and since I had absolutely no experience at it, didn't feel I could manage it.
But once he saw the eggs, he wouldn't let it go. So on the fly I set up a hatching tank, a 3 1/2 gallon, put in an airstone and because I didn't have methaline blue on hand, put in some hydrogen peroxide.
I seriously didn't think it would work but dang if it didn't and I managed to raise the fry until they were big enough to be added back into the 55 gallon community.
And then they did it again and the hubby got on me to save the eggs. The first time the eggs were on a leaf and I just cut the leaf, this time it was on the side of the glass. I tried the credit card thing and broke most of the eggs. Then tried a razor blade and actually got enough to once again add to the on the fly hatching tank set up, again, airstone and hydrogen peroxide.
This time I did get fungus, I think mostly from the damage of removing the eggs from the glass, but I also got lots of fertile ones hatching. So now I have just moved the babies to a 10 gallon grow out tank and I don't care what the hubby say, I now have enough to make a very large size cory herd in the 55 gallon, no more egg gathering, lol.
The only down side to the whole experience is that the hubby now wants to raise panda cory eggs. So the 3 females in one of my shrimp tanks are now in yet another tank with 5 more young cory's I bought that I'm waiting to grow up enough to reach breeding age, I'm hoping I got a good mix of males in the new ones since you should have more males than females.
This is all in the air. I had luck with the albino's, but they are about the easiest to breed, I don't know if the panda's will be as accommodating. I hope they do, but if not, I'll still enjoy them, I really do have a love of the cory's.
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That's something I didn't know when I saved a lot of Peppered Cory eggs. I had about 40 hatch and only 10 survive in my tanks as adults. 2 of them look like they're 6 months old, little midgets! I never understood why they didn't grow like the others. I learn something new all the time.
But looking back, I know full well I did a lot of water changes and kept them as clean as possible. Is there anything else that might stunt some of them?
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No, they're about half sized, but one is smaller than the other. While they were growing out, this peanut looked like he was a week old when he was 6 weeks! Funny that I lost so many but he and the other smaller one toughed it out! To me they all seemed fragile. I wasn't expecting to care for them in the beginning, it was the first time I tried, like the OP. Now I'd like to plan to retrieve eggs and be ready.... someday.
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Sometime it still happens even when we keep up with the water changes. I have one little bristle nose pleco. Her dad is that handsome fellow over there in my avatar. He is about 5 1/2 inches long. She is almost 2 years old now and stopped growing at about 1 1/2 inches.No, they're about half sized, but one is smaller than the other. While they were growing out, this peanut looked like he was a week old when he was 6 weeks! Funny that I lost so many but he and the other smaller one toughed it out! To me they all seemed fragile. I wasn't expecting to care for them in the beginning, it was the first time I tried, like the OP. Now I'd like to plan to retrieve eggs and be ready.... someday.
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