Corydoras davidsandsi lives in the middle stretches of Rio Negro in Brazil. This species is sometimes mistaken for Corydoras metae since they sport similar colorations, but Corydoras metae is native to Colombia, not Brazil. Separating these two species is actually quite easy if you take a closer look. Corydoras davidsandsi have a more elongated snout and the distinctive black stripe continues all the way to the bottom lobe of the caudal fin. If the black strip ends short of the caudal peduncle you are instead looking at a Corydoras metae.
Triggering Corydoras davidsandsi to breed
To begin with, your Corydoras davidsandsi must naturally be given a good environment. They prefer a well cycled aquarium and with a lots of plants, such as Java moss and Java fern.
Feeding your fish a meaty diet is an important aspect of triggering Corydoras davidsandsi to breed and you can for instance offer them bloodworm, white worm and daphnia. Ideally combine this with high-quality prepared food, e.g. flake food or catfish tablets.
As with most Corydoras, changes in water temperature and chemistry is known to trigger spawning, so when your fish are healthy and well fed it is time to carry out 50% water changes twice a week. Use water that is significantly cooler than the water in the aquarium. Corydoras davidsandsi is known to have successfully spawned in really soft water with a slightly acidic pH-value (pH 6.5-6.8), but whether or not this is ideal conditions is not yet known.
Sometimes Corydoras davidsandsi need a really large push to start breeding. If you have tried the suggestions above to no avail, you can retort to performing a 75% water change with cool water, adding vigorous aeration and give your fish huge quantities of meaty food.
Corydoras davidsandsi spawning
During spawning, the dominant male will chase the female around before they position themselves in the classic Corydoras “T position”. The male will use his pectoral fins to grab the female at the barbells, and this can unfortunately cause some damage. The male will push the female really hard and she will break away from him within 10 seconds. The female will then start releasing her eggs into her ventral fins. The male will continue to chase after her as she swims around in search of suitable spawning sites. Plant leaves as well as aquarium glass can be chosen. During the first spawning, it is normal for the female to produce a very small amount of eggs. The couple can continue to spawn once a week and the following batches will normally be bigger than the first one.
Corydoras davidsandsi eggs
Most Corydoras davidsandsi breeders chose to move the eggs to a fry rearing aquarium to safeguard them from hungry adult fish. The fry rearing aquarium should have sufficient aeration to prevent fungi attacks. You can also at methylene blue to the water to decrease the risk of fungi problems. Unfertilized eggs must be removed as soon as you spot them.
Corydoras davidsandsi fry
The eggs will normally hatch after three days and the fry will feed from their yolk sac during the initial 48 hours. Microworms and liquid egglayer fry food are suitable as first foods. When the fry are around two weeks of age, you can start feeding the crushed flake food and brine shrimps.
Large and frequent water changes are really important when breeding Corydoras davidsandsi. During the first few weeks, up to 50% of the water should be changed each day. It is however important not to shock the fry with rapid changes in water quality, temperature etcetera.
Didn't find the info you were looking for? Register for free and ask your question in our Aquarium forum !
Our knowledgeable staff usually responds to any question within 24 hours
Breeding Corydoras, Brochis and Aspidoras catfish
- Secrets to the successful breeding of Corydoras, Brochis or Aspidoras catfish
- Information about Albino Catfish
Biggest Catfish ever caught
- Information about which is the Biggest Catfish ever caught
- Information about Blue Catfish
Breeding Bristlenose catfish - Ancistrus species
- How to breed Ancistrus
Breeding Corydoras barbatus, Banded Corydoras / Bearded catfish
- An introduction to the species and how to breed it.
Breeding Corydoras elegans
- How to breed this dwarf Corydoras
Breeding Corydoras gossei
- Detailed guide on how to breed C. gossei.
Breeding Corydoras melanotaenia
- Information about how to keep and breed C melanotaenia
Breeding Corydoras nattereri
- Guide to breeding Corydoras nattereri
Breeding Corydoras xinguensis
- Information about how to keep and breed this beautiful fish..
Breeding Panda Catfish, Corydoras panda
- Learn how to bread panda catfish.
- Information about how to breed different kinds of whiptails.
- Information about Channel Catfish
- Information about Flathead Catfish
Giant Mekong Catfish
- Information about Giant Mekong Catfish
- Information about Huge Catfish
Tatia perugiae - Driftwood Catfish - Perugia's Woodcatfish
- An article about tatia prugiae.
- Information about Monster Catfish
Spawning Bristlenose Plecostamus (Ancistrus dolichopterus)
- After months of inactivity, Twyla's Bristlenose Plecostamus finally decided to breed, and the eggs hatched.
Breeding Synodontis multipunctatus - cuckoo catfish
- A guide to keeping and breeding S. multipunctatus aka "cuckoo catfish"..
Jaguar catfish (Liosomadoras oncinus)
- Information about how to keep and care for the jaguar catfish.
Tiger Shovelnose Catfish
- Information about Tiger Shovelnose Catfish