Jump to content

Spawning Corydoras Similis

Marius Myren

Recommended Posts

Finaly! My group of 6 corydoras similis finaly spawned(2 females and 4 males). I keep them in a 40 liter aquarium about 10 gallons. They have been in this tank for about a month with a spawn of my Ancistrus (bristlenose plecos). I keep it super low light with a little Ikea light, and a lot of tanins. Ph around 6.5 sometimes as low as 6 and a temperature of about 25 degrees celsius, about 77 degrees farenheit. I feed them with Tetra discus granuals as well as Sera vipachips "flakes". About once a week they get frosen food, often a mix of froxen blood worms, artemia (brine shrimp) and mysis. The plecos get cucumber and succini every day as well, no risk of bloating here.

Today I found my first spawn, 21 eggs. I colected them and put them in a breeder box, to reduce the chance of fungal infection on the eggs I added Sera Mycopur to the tank, following the package information (it contains acriflavine, chlorure cuivrique, sulfate cuivrique as well as purified water) as it specificly has a use for this aplication). I am so excited for this project.

Few things to note:
1. The eggs were scattered around the whole tank primarily on the glass in hard to reach areas like behind the internal pump, and on the Anubias Nana petit I have tied to som driftwood.
2. The eggs were not that sticky, Corydoras Panda eggs are a lot more sticky. This made it hard to place them in the breeder box, so about half of them fell down to the bottom of the box.
3, I have a lot of movement in the tank. I have two aquawel internal pumps, one with about 50 l/hour, and one with 150 l/hour. I feel like I have to specify that there is no reason to have two pumps in such a small aquarium if you concider the bacteria in the aquarium, as there is a lot of surface area other places than in the filter sponge in  the pump. How ever I added a more filtration in order to create a  lot more flow. This also added more oxygen in the water which is positive.

similis egg.jpg


  • Like 2
Link to comment
Share on other sites

  • 2 weeks later...

So this went differently than I anticipated, none of the eggs hatched. I have a few thoughts about it; I think the group is too imature, thus none of the eggs were fertilized. How ever it's also a chance that I have miss judged the sex of the corys. 

This is still a good sign for the group, maybe next time 😄

Luckily I still have my Corydoras Panda fry growing up, Endler fry and Bristlenose pleco fry. 

Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

  • Create New...