I didn’t realize when I started collecting eggs that there would be so many. Thank you, Carolyn. For some reason, (and I will have to research this), I don’t think it’s wise to have metal objects in fish tanks. Already have too many cories on my sorority to gat a male! Now my corys are over a year old and spawn every 3-4 days. She laid a load of eggs in a net nursery in our tank. If the fish doesn’t start spawning, repeat the procedure. Very useful guide. It took my guys about 6-7 spawns to produce good eggs in good amounts. hi, i recently bought 2 corydoras julii for my community tank. Post pictures on the forum! For example, peppered cory catfish (Corydoras paleatus) and julii cory catfish (Corydoras julii) are found on the cooler end of the spectrum, whereas sterbai cory catfish (Corydoras sterbai) can live in higher temperatures. Those will be ready for new homes in the next 2 weeks, as they are between 1/2 and 3/4 inches. I appreciate your kind comments :), I have just witnessed my Albino Cory breeding, so transferred the parents to a different tank as they were in the community one, this tank was not ready for them so has a substrate and plants in it. Adding cold water will simulate the rainy season. You should be able to tell from looking at the babies what type they are. Source. also love the pic :). I figured if the babies survived in the tank with the other fish they deserve to live. Awwww, you have to be right there when they are laying eggs or they will get eaten :( Hopefully you will catch them at the right time soon. Adult corys will also eat the eggs if given the chance. I hadn’t heard of the issue either when i started. Is there anything I could place in the tanks where the Cory’s would lay eggs on, so I can remove it and put it in another bare bottom 5G tank? Less than an inch , they are likely only between 2-3 months old. The black neons will be going into a cycled 30 G tank with other tetras. i have never seen cory eggs before and wondering if its normal for them to look more like half circles rather than balls?? Do you happen to have a Nerite snail? Thank you for writting such an informative blog. Once the eggs are laid, the cory pair swim away and will go through the chasing and the T-formation again and again until the female has laid all of her eggs. They are a pinkish tan color is that the color they are supposted to be? This species is also known as Corydoras julii. Peggy If you make a new post you will get more answers with a variety of ideas. The traditional Cory trick is to put the well conditioned group (pairs are not good - several males to a female work better) into a breeding tank and do a water change adding water that is a few degrees cooler. It is the emerald green ones! I just feed good, keep tank clean and balanced and they spawn. Its red eyes glow always. That seems to be the preferred place to lay them. The eggs will be deposited around the tank, on plants or even the tank glass. The eggs will hatch within 3-4 days and the babies will look like two eyeballs with a tail. Anyway, these are just some suggestions. Congratulations! I hope I can shed some insight into this dilemma. Getting multiples of a cheap filter on eBay has worked for me because I can switch the sponges inside out. - Shane's World Species An English translation of the description of Corydoras julii - CotM 2015 March: Species Information; Size: 52mm or 2" SL.Find near, nearer or same sized spp. I would suggest adding a little leaf litter then more and more and looking the other way for a few months. In the breeder net, there is no place to "stick" the eggs, they just fall to the bottom. Adding more fish would not be a good idea at this time I believe? Some just hatched yesterday and some are about a month and half old. I loved raising these little guys. Thx Carla. Yours won't be ready to spawn for another 6 months roughly. I try to make sure the net is really tight. ( I think ). Hi Angellady. I do have a 10 gallon tank I c an use to raise any survivors. Pretty sure this one (top cory in the second pic) is corydoras similis, the smudge spot corydoras. Just to set the record straight I have a couple of Cory fry at the moment from two different tanks .They are not from my efforts. Thank you again.again. Should I leave it alone? I prefer the "roll onto your finger" method as described in my blog above. I’ve had mine about 8 months or longer in a shared tropical tank with no other Cory’s. At about 4 weeks old, you can drop half of a Hikari Sinking Algae Wafer in the net and also offer them baby flake food. Was on vacation 21-31 August, water change before I left with a vacation feeder (tropical slow release not pyramid) left on the bottom. They’ve been together for about 10 months and I never saw any eggs. But after loosing first 2 batches of babies cause they refused the fry powder I had to try something different. julii: named in honour of a person whose identity remains a mystery. :), Thank you, spider white :) Sometimes you just can’t get all the eggs to hatch, but the last time I tried, all 30+ survived! I now have about 100 Cory babies. Thank you so much Momtoangel. It could have been an age thing or the lighting in that room I don't have a logical explanation. Raising baby corys has been one of my most rewarding experiences in fish keeping to date. I am not sure what you are trying to do with the water? :) Also, if they are in a breeder "net", keep an eye out that they don’t get caught in the corners. This guide is suitable for beginners who are starting out or those who want to learn more about breeding Corydoras. Quite often, this species is mistakenly sold as a far less common cory species, Corydoras julii. I just moved them into another 20 G long tank with 6 female Bettas. They are fairly easy to sex owing to their slight difference in size – males only reach a maximum of 2.5 inches long, whereas females can often reach 3 inches. Win win! I’m thinking 3x/day? In conclusion, the breeding of Corydoras trilineatus is rather rare, but remains possible with a little experience. a while back i had 4 sterbai who died within a few days of buying them. Apparently at least one egg made it! As long as they can hide once they’re hatched, they’ll be fine. Thanks for those details. i dont have any snails, just rainbows, pearl gourami, kissing gourami, columbian tetras, musk turtle, bolivian rams, geophagus (growing out). Lol. Breeding. Thank you so much for all your help. I d... How often should I change my filter pad!?? The egg development time is in the article. I don't alter temp or anything. Thank you all for the positive feedback! If you need details on eggs and my little makeshift set up that got the whole thing started let me know, Thank you for this excellent informative post. Before releasing them, cover your filter intake with a filter sponge. Here are some things to consider if you’re thinking of breeding Cory Cats or if you have a surprise batch of Cory Cat eggs. The female is much larger than the male and you will notice the pair are always together in the aquarium. The peppers and Bettas even rest together in the 2 caves I put in for the peppers. Set up the breeding tank (18″ x 12″ x 12″ or similar is a good size), with either a … As time goes by, it will be very obvious to you who has paired up :) They will usually always stick very close together. Came home today to find that my Cory has laid eggs, however she’s in the tank by herself and hasn’t been with other Cory’s since I got her at the pet shop all those mo the ago. One question: just fed them Hakari first bites. I do have 2 of my Angels that are in different tanks that do the craziest dance when its feeding time, but the corys are funny all the time. They stayed hidden most of the time. thank you for your well put together article - it had all the information I was looking for. Can you put the half inch fry in with the new batch? The peppered babies should have spots as soon as they are born. Females are quite a bit rounder than males. Can I feed the newly hatched liquid fry food? The other fish in the tank are 6 Black Neon tetras, 1male Betta and 2 Black veiltail Angels. If you go to the top of your screen you will see a button that says post, click that then click new question and submit that, doing so you will get more answers since more people will see it. If so, I think he would be fine. My corys ( who i got as juveniles , pairs from different sources so as not to inbreed if it could be helped) did not spawn for the first 5 -6 months. Basically, this strategy entails removing the breeding Cory group from the main tank and acclimatising them to the dedicated tank, subsequently encouraging the fish to breed. They are just establishing who is who in the tank in my opinion. Yes the half balls are exactly as I would describe a Cory egg case . Holding back on fresh water by only changing 25% will simulate dry season. I always kept mine in a 5-gallon grow-up-tank - the same tank where they were hatched. They are so much fun to raise. I have 7 Corydora Trilineatus and approximately every two weeks the females lay eggs, 10-20 pcs. Place the leaf in the breeder net with the eggs facing DOWN. During this time, you need to rescue the eggs. I keep my babies in the 5-gallon tank for at least 3 months just to make sure they have some size on them before transferring them into their permanent home. Hello after four years have hatched peppered Corey’s in tank. 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