3. Favorite spots include the heater, filters, and the glass, although, occasionally eggs are also laid on plants and driftwood. Cory catfish require a certain temperature to signal that it is time to breed and should be kept in optimal conditions to ensure that they feel comfortable laying eggs. Joined May 20, 2018 Messages 5 Reaction score 0. They are one of the easier corydoras to breed. If you condition the female really well, she will lay more eggs, more frequently than if she was being fed less nutritious foods less frequently. After the female has laid her eggs, all of the adult bronze corydoras should be removed from the tank. Female albino cory catfish carrying newly fertilized eggs in her pelvic fins: How to Collect Corydoras Eggs If you leave the eggs alone, it’s like a natural form of population control because most of them will get eaten. The Albino Cory Catfish (Corydoras aeneus) is a rather hearty species, and are easy to keep. As a rule this is a tank wall or plants with wide leaves. If you would like to breed Delphax Corydoras, then it is recommended that you have a separate breeding tank prepared. Albino Corydoras laying eggs. How Often Do Cory Catfish Lay Eggs? Thread starter #1 AmazonPassion Fishlore VIP. Gert Combrink. Thread starter AmazonPassion; Start date Dec 29, 2012; Dec 29, 2012. Protect the eggs from fungus. After depositing a group of eggs closely together, the female rests for a few moments. Once fertilized, the female will deposit the eggs at the site it has previously cleaned. I have 4 corydoras: 1 peppered (this is the one who has laid eggs), 1 bronze and 2 albino. You will need a tank of 30-40 liters capacity with dim lighting for breeding. Some factors aid the spawning of every fish. R. Rhiannon_98 New Member. They are a small fish, typically about 2 to 2 1/2 inches in length. If however you have the time, room, finances to raise fry, I have added a link to an article to read. They will adapt to a varied water chemistry and temperature. Pygmy cory (Corydoras pygmaeus) If you have a nano tank that needs some smaller bottom dwellers, you can’t go wrong with these tiny cory catfish. And since I had no place to move the corys, none of the eggs survived. I'm very excited because my Corydora just laid her first eggs. Thread starter Rhiannon_98; Start date May 20, 2018; Tags cory catfish corydoras eggs click to enter! This tank can be undecorated, but a soft substrate is a must, as your Corydoras will prefer to feed by rummaging in the substrate for food and the female will lay her eggs … For a six Cory catfish group, it might take every seven days for each female in the group to lay eggs, provided all other conditions are met. Well this morning I woke up to find eggs placed all over the tank. My female convicts will stay by their nests and 'fan' the eggs with their fins. Two of my corydora catfish, or green corydoras as petsmart calls them, had eggs. The eggs will then roll over till the sticky side comes into contact with your finger. Well I was joking around with my daughter cause the biggest SterbaI and the biggest JuliI are attached at the hip. The only sad part is it is in a community tank but what an interesting experience it was to see how the whole process works. Infertile eggs do not usually last this long. The eggs should hatch within the next six days. There are many different species of cories. The size and the quantity of eggs seem to be related, a species laying small eggs produces large numbers and a species producing large eggs only produce small numbers. The eggs after laying should have constant water flowing over and between them. Fish eggs HELP!!!!! Now what's throwing me off is that any time I've ever seen Corydoras lay eggs, they have been on the glass and were eaten right away by the other fish, never on something like the piece of drift wood, but there are no other pairs of fish in the tank that would have laid them. When females are about to lay eggs, they will clear an area of sand to make a nest. They are the size of my peppered corydoras. Three or four days is usually about what I expect in water around 72 F., although this can vary according to species. Many owners keep them to take care of uneaten food from the bottom of the aquarium. I have some cory fish and yesterday noticed some eggs on the side of my tank, I am unsure whether I have male or female and am unabe to tell the difference. During reproduction, the female will lay down her unfertilized eggs and then put her mouth against the genital of the male Corydora. But you can make the place where the female will lay eggs brightly lightened. Convicts protect their eggs, I don't think corydora dooo, but I'm sure the same water flow rule applies. Member. If their bellies are round and fat, they may start breeding and laying eggs for you. After the female finished laying eggs, the other corys started eating them. … Messages 8,550 Reaction score 553 Location Denver Experience More than 10 years I first thought she had a tumor growing then noticed it was an egg cluster. Egg size varies form species to species; the smallest I have measured was from Corydoras pestai at 0.7 mm diameter and the largest from Corydoras 2.8 mm diameter. Previously I have used dark green polyester 'wool' for making these mops. Making sure that the water is clean, and the proper pH balance is a necessity for Cory catfish to lay eggs. My cories were spawning once a week at one point and I also had only one female. She is huge compared to the others. The sperm then goes through her digestive system, then it comes from the anus to fertilize the eggs … I also think the species of cory can have an effect on that. Bronze Cory Catfish (Corydoras aenos): ... Later on, when the females lay eggs, it will be much easier to control water quality for the fry without having to move the parent fish to a different tank. In the wild, Corydoras usually spawn during the rainy season, so you can encourage mating by simulating these conditions. Laying the last eggs. I love them all but my peppered one (called Pepsi) is my favourite fish ever. Breeding the Delphax Corydoras. There is no parental care from the adults. :bigsmile: Gerrit, Jun 17, 2010 #1. Once she's finished, very gently, roll your finger over the eggs. They lay adhesive eggs, normally on the glass wall of the aquarium, which sticks there until they hatch and then drop to the bottom of the aquarium. Corydoras are egg depositors and lay their eggs all over the aquarium. Tank water parameters for spawning should be the following: temperature 20 – 26°C, hardness 4-15°, pH 6.0-7.2. When you see them doing their little dance, especially just after they've gone into the 'T' position, the female will start laying eggs. Corydoras won’t lay hundreds of eggs, in fact they often lay between 10-15 eggs in one place – usually glass, but they’re able to lay eggs on leaves of plants, even decorations can be a place which they choose for this purpose. This was not intentional but I am uncertain if they are fertile or not. If you begin to notice your Corydoras engaging in spawning behavior, perform a water change with slightly cooler water. To encourage the egg laying, do a large partial water change, my tanks get at least a 50% a week, the change of water does seem to stimulate spawning, if your tank has a lot of plants, hiding places, some eggs may be overlooked by the fish in the tank and manage to hatch. In the proper conditions, Cory Catfish can lay eggs weekly. Telling The Difference Between Dwarf Cory Species Corydoras pygmaeus and Corydoras hastatus are the two that seem to gather the most confusion – likely due to their similarly tiny stature. Once they have mated, the female will lay her eggs against the aquarium glass, or among the leaves of the plants in your tank. I just got 7 Corydoras 2 days ago. Spawning can occur several times between several different pairings of the fish, and after it appears that activity has died down in the tank, the adults should be removed. The female will then begin to swallow the sperm from the male. May 20, 2018 #1 Hi all, I have a community tank and my albino cories have decided to lay eggs. Corydoras eggs - Fertile or Unfertile? Some Corydoras (and many other fish) prefer to place their eggs among moss, roots etc rather than on flat surfaces. I did a quick Monday video since I had my phone handy and noticed new Cory eggs on the glass. They are bottom feeders, and they have short whiskers that help them locate food. Can Corydora catfish lay eggs with no male present? The males regroup and start chasing each other and then resume chasing the female. I got 2 SterbaI and 5 Julii. I´ll post the videos of the spawning of the firts corys as soon I can. The eggs are sticky and will adhere firmly to the nesting site. You can see her … They will usually turn white and fuzzy with fungus within a day or so. During this time, take any pure white eggs out because they are dead. Petsmart didn't label them as emerald corydoras. Images are copyright and may not be reproduced without permission of the copyright holder. I've had convicts breed like mad. 2. I have moved the eggs to a breeder trap but if they are fertilised I will buy a net and then move to my smaller tank when hatched. My albino corydora catfish keep eating the eggs the male fertilizes, and I want to move them to a new tank. This 1-inch (5 cm) catfish has a silvery-gray body with a black horizontal line running down the side. Methylene Blue is a good medication to put in to prevent this. This is one of several clutches that I recorded on my phone. However, they will reduce the growth of algae by consuming scraps in the tank – this reduces the growth of algae. When in the new tank, how would I get them to lay eggs again? For these species, providing a spawning mop is a good idea - it gives them somewhere to lay their eggs that is easily removed to a nursery tank. Well, there was a total of 9 Corydoras in there in total (of various breeds) - so i'm hoping for plenty of males... not too many eggs though considering the amount of Corydoras in there! Cory cats will lay eggs in random locations. Put simply, no. Joined: Sep 14, 2008 Messages: 1,786 Likes Received: 16 Location: Protea Hights, Brackenfell, Cape Town. The Aquarium Catfish Website. Development of the eggs tends to vary with temperature of the water with a faster hatching taking place in warmer water and slower hatching happening in cool water. Do Cory Catfish Eat Algae? Gently move the egg to the plastic holding tank remebering not to take the eggs out of water. Some sources suggest one female can lay as many as 50 eggs over the course of a week, but there doesn’t seem to be any official numbers. They'll 'swim' in place to create a slight current over the eggs every now and again. The eggs will then be deposited on a flat surface in the aquarium, which may include plants, glass or even the heater. Shortly after that, the pair will spawn again, depositing a few more eggs each time. If none are provided, they may still deposit the eggs on a flat surface in the tank or the aquarium glass itself. The rate at which Cory catfish lay eggs varies alongside the number of fishes in the group. Guest. Congratulations! 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