My Cories Are Spawning Everywhere!

[FishGuest5123]

Maybe, the lower temp might help them it will certainly slow down the use of the yolk sac.

It's hard, it's not great when they don't develop but at the same time there is very little you can do at that stage. All of the development up to the point of first feeding is controlled by the environment (temp usually) and the nutrients contained within the eggs. so they best thing to do is try and influence it on the broodstock end and accept that even with 30 years of international investigation (and Literally Billions of £'s) behind doing this in aquaculture the best results for this stage for some species can still be as low at 20-30% survival. Edit: And that is after maybe 30% loss at hatch. so you are looking at the end result after weaning (going from live to pellets) at less than 10% of fertilised eggs surviving.


I don't know, I have never used them. The main ones for Aquaculture are Brine shrimp, Copepods and Rotifers. I would guess that if they are quite small they probably will be ok

What are Rotifiers and where can you get them?

 

[FishGuest5123]

@The Lumpfish Guy I was thinking. Some of my eggs hatched after 2 days which was really at least a day early. Could that have caused their yolk sack to run out quicker? I was told not to feed them until Day 3.

 

[The Lumpfish Guy]

Rotifers are small zooplankton. The most common species used as live feed is Brachionus plicatilis
Here is an old review but covers the basics : https://www.researchgate.net/profil...quaculture/links/0f31753722104c910f000000.pdf

Just did a quick google search and It looks like you could get them from some marine supply shops (Other vendors available )https://copepod.ca/collections/pack...lend-live-zooplankton-and-phytoplankton-blend

I have never used them in my hobby, and the are less used in Aquaculture, but often used with species which have small larvae stages due to their small size than brine shrimp especially crab/lobster and shellfish culture.
They come in a lot of the marine aquarium "seeding" and coral food kits again due to their smaller sizes

 

[The Lumpfish Guy]

@The Lumpfish Guy I was thinking. Some of my eggs hatched after 2 days which was really at least a day early. Could that have caused their yolk sack to run out quicker? I was told not to feed them until Day 3.

Would the yolk sac run out quicker, I'm not sure, its possible that juveniles which are hatched require more energy, its possible early hatching means less developed there are so many factors that I couldn't say for certain.

 

[FishGuest5123]

Rotifers are small zooplankton. The most common species used as live feed is Brachionus plicatilis
Here is an old review but covers the basics : https://www.researchgate.net/profil...quaculture/links/0f31753722104c910f000000.pdf

Just did a quick google search and It looks like you could get them from some marine supply shops (Other vendors available )https://copepod.ca/collections/pack...lend-live-zooplankton-and-phytoplankton-blend

I have never used them in my hobby, and the are less used in Aquaculture, but often used with species which have small larvae stages due to their small size than brine shrimp especially crab/lobster and shellfish culture.
They come in a lot of the marine aquarium "seeding" and coral food kits again due to their smaller sizes

Thanks! I’ll just stick to the live baby brine shrimp then. I love to watch their bellies get pink.

 

[FishGuest5123]

I have new baby Cory fry today... All I’m going to say right now so I don’t jinx them.

 

[The Lumpfish Guy]

Thanks! I’ll just stick to the live baby brine shrimp then. I love to watch their bellies get pink.

Also a good indicator that they have been feeding

I have new baby Cory fry today... All I’m going to say right now so I don’t jinx them.

Looking forward to hearing the results

 

[FishGuest5123]

Pic of one of my albino fry. He will be 2 weeks old tomorrow. I

call him”Bully”.

 

[FishGuest5123]

Pic of cherry barb fry, 3 weeks old. Note how he has the line running down the middle now just like adults.

 

[FishGuest5123]

I have new baby Cory fry today... All I’m going to say right now so I don’t jinx them.

Well, not real happy with my Cory breeding. I have my 4 2 week olds that are doing great and cute as can be. My 2nd spawn did not come out as hoped though. 75 eggs and I only have 3 fry. Some eggs didn’t hatch and some fry only lived a few days at the most. I think I’ll hang up my hat on Cory fry after these and concentrate on breeding cherry barbs. They are a challenge but much better outcome for me on viable fry. Just too much work, IMO, on the cories for just a few survivors. It’s just not for me. I’ll leave it to those with better results.

 

[mbsqw1d]

Well, not real happy with my Cory breeding. I have my 4 2 week olds that are doing great and cute as can be. My 2nd spawn did not come out as hoped though. 75 eggs and I only have 3 fry. Some eggs didn’t hatch and some fry only lived a few days at the most. I think I’ll hang up my hat on Cory fry after these and concentrate on breeding cherry barbs. They are a challenge but much better outcome for me on viable fry. Just too much work, IMO, on the cories for just a few survivors. It’s just not for me. I’ll leave it to those with better results.

Breeding barbs sounds like a more specialised task IMO. Cories will just get on with it, whether or not the fry survive I'm not sure what amount of controls can be put in place to help that. But with barbs, you have to setup tank specially with marbles and what not! I think obtaining fry from barbs would be much more rewarding. Wish i had some female Odessa to go with all my males and see what happens. Maybe one day!

 

[FishGuest5123]

That’s how I feel. More rewarding with choosing the right pair, getting them to spawn and the tank set up correctly for the eggs. I love watching the ones I have now develop. It took a couple of times to get it right but I think I have figured out.

 

[FishGuest5123]

A few updated pics of my fry. The big albino is “Bully”, the larger bronze is “Grumpy”, the I have “Bashful” and “tny@. Bully has the most beautiful pink eyes but she wouldn’t come close enough to get a good shot. Cherry Barbs are coloring up nicely. P

 

[FishGuest5123]

Best I can get if Bully’s eyes right now ni it doesn’t do them justice.

 

[The Lumpfish Guy]

Looking good, how are the newer batches doing?