Growing Corydoras Eggs Out of Water

[@stevelesterfelt7005]

Best channel on this app

[@BlakesAquatics]

Easily the most interesting aquarium video ive seen this year! Well done

[@shackleDev]

didn't know one of my favourite youtubers watched one my other favourite youtubers

[@IvansGuppies]

I agree!

[@MakeMoreFish]

Thanks! Very unusual subject matter this time.

[@BlakesAquatics]

@@shackleDev thanks mate 😄

[@memeboi6017]

At first I went "HERESY!" and then I realized that this is honestly some revolutionary stuff. Wonder if this will work on other groups like Cichlids, It would be pretty easy to get the eggs in and out of water.

[@MakeMoreFish]

oh no, it's definitely heresy. My suspicion is it would probably work with cichlid eggs. A plate of ram eggs for example. I bet that would be a perfect use case.

[@theaquascapecorner]

@@MakeMoreFish rams out of water would be crazy

[@adamfuller1189]

@@MakeMoreFish You can definitely keep trout eggs out of the water for a while as long as they are damp, and I suspect the same holds true for a lot of species.

[@jodyreed955]

Lots of fish. Mouthbrooders maybe. I’ll test it this week

[@JessMcCrossan]

Bahaha I love that you acknowledged you might have squished some in your excitement. When my guppies spawn anyone who comes into the house is practically dragged to the tank to look at the little cuties. Im just as excited every time. "Look, they're just little tails with eyes!! Arent they cuuute?!"

[@MakeMoreFish]

People that don't even know. Don't even care. Doesn't matter. They're seeing the cool fish thing

[@AquaticMoose]

Love it! Maintaining the highest quality, thank you for sticking with it and keeping us entertained and educated.

[@wheatonderek]

Very excited to see that you tried this! I suspect I may be that lunatic that first inspired this experiment. Definitely some interesting findings here, especially regarding the failed hatchlings, although the fact that it works at all is more significant. One of the most convenient things about working with killifish is the ability to easily ship hardy eggs with minimal postage cost, high survival, and no stress on free-swimming fish. Even if not totally optimal for breeding fish in-house, further experimentation with this sort of thing could mean that we find easier ways to trade fish with other folks. Since I've seen it work with at least one cyprinid, and a commenter mentioned surprise tiger barbs, using a wad of moss to breed egg scatterers and then shipping the wad of moss might work for a whole host of species.

[@MakeMoreFish]

My suspicion is that this probably would work for just about any eggs unless they are extremely fragile. I have a feeling that we're about to find out, and I think you're right that it was you. So as a few hundred other lunatics go try this, whatever happens next, I'm not saying it's your fault but it's not NOT your fault.

[@Finsandflowers]

Curious if flipping the cotton so eggs are on the bottom while the cotton floats would change rate of deformities. Possibly handling the eggs could change physical properties ie any oils on fingers. Anyhoo excellent video!!!

[@MakeMoreFish]

I figure touching and compressing the eggs is always better avoided when possible. I'm not sure how related they are but I do handle eggs routinely and the curvature is never this bad. There's a lot of experimenting that could be done to figure out ways to make the most of this.

[@BougieBishFish]

Let's get another shop talk soon!! I really enjoyed those

[@MakeMoreFish]

I kind of made one but broke it up into these last few videos.. which from a KZbin perspective is probably a better strategy. I'll see if I can put something else together.

[@IvansGuppies]

I love this! Thank you for trying new things and making videos about it. The work you put into these videos is superb, enjoyable, and inspiring. Your channel is one of my favorite subs.

[@MakeMoreFish]

Thanks for being here! I appreciate that.

[@skrounst]

The kinda crazy thing is you "incubate" (germinate) plant seeds like this too!

[@avengedglory]

Now this is kinda nutty. As we say.......Let him cook 😂

[@MakeMoreFish]

Totally

[@memeboi6017]

A theory, perhaps the higher hatch rate and proportion of “goners” is very related, maybe if they were in water from the start, those “goners” would have simply died in the egg instead of growing.

[@MakeMoreFish]

Ya, I was thinking that too. There are more fry, maybe these are ones that barely made the cut in this setting but ordinarily would have never made it this far. It's possible.

[@MalawisLilleKanal]

@@MakeMoreFish They might be more viable due to better access to oxygen.

[@mountaintoppufferkeeper2289]

I may need to try that with some puffer eggs at some point. Very interesting results.

[@MakeMoreFish]

I've been thinking about where else it might be applicable. Smaller eggs with thinner membranes might be damaged by abrasive materials like paper towel but who knows. So much more testing needs to be done.

[@gatunorox6668]

@@MakeMoreFish I wondered if floating the cotton pad upside down in the tub would reduce manipulation risks during transition. Might be worth a try

[@andreagalda28]

This is very interesting. We can't get medication like M blue in Cabada, so this method is worth more investigation. Love your videos and your curiosity.

[@audrameyer9558]

This was so very interesting 🤔 I would never have thought to even attempt this method. Thank you for the entertaining education!

[@oinaw]

very interesting! will there be a video about the loxozonus? 😜

[@MakeMoreFish]

Yep I'm filming that right now. These will probably be the fry featured in the video.

[@AudreyCooper-n4k]

I’m actually surprised I found this video not long after it was posted Lol. I loved the narrative explaining your experience, definitely made me laugh! My Habrosus Cories just spawned and there are eggs all over my tiger lotus so I managed to take some out and this is a technique I’ve never heard of before, very interesting!

[@markfranklin8831]

Interesting. Not something I would ever need to do. Thanks for sharing

[@MegaChance3]

Very cool Never would have thought to do this

[@MakeMoreFish]

Me either until just recently.

[@bearzfaces2030]

found your channel about a week ago and binge watched every video. i think your stuff is awesome! now you gotta start letting out 2 videos a week though lol. Good Job buddy!

[@MakeMoreFish]

oh god I would die

[@bearzfaces2030]

Youll be greatly missed lol​@MakeMoreFish

[@tigercow]

Changing the game. Love your stuff.

[@JamesReed-un7pf]

Amazing video, so impressed with the results. What a guy!!!

[@EmperorTetraObsessedPerson]

“He’s doing this killifish style! 🔥🔥🔥🔥🗣️🗣️🗣️🗣️🗣️”

[@jubbjubb535]

I imagine one of the reasons for the abnormal amount of deformed fry might be the eggs getting more "squished" due to the lack of support from the surrounding water. Maybe more so if eggs are piled on top of each other. Hard to say though, since the eggs are so small that getting crushed under their own weight seems unlikely.

[@MakeMoreFish]

It could be... but I mostly blame the egg membranes being too tough. Who knows?

[@jubbjubb535]

@@MakeMoreFish regardless, a very cool video!

[@CSR462]

Yay, you posted! Thanks Lowell

[@Behindyouarethings]

Would have gotten more trustworthy results if you just had used 1 species instead of 3 but its really interesting to see that it even works like this and most definitely could be an option if you run out of water space or something! I also have a suggestion for a future breeding project maybe that being laetacara curviceps. They kinda breed like rams but there isnt mucht info on them so would really like a vid👀

[@sankarshdv]

This is a great video! Thanks for sharing. Also Have you ever tried to breed and successfully raise the fry of any of the Boraras species ? If yes, please do share your experience working with them.

[@MakeMoreFish]

No personal experience but they are somewhere down on the to-do list.

[@thecatfishden]

Very interesting! I do think that this would be most useful for shipping eggs rather than a standard at-home incubation; although it’s a good tool to know how to use.

[@MakeMoreFish]

Yep, agreed. Should not be necessary on a regular basis.

[@Redkoolaid402]

Use a plastic gift card for the eggs! Something with the plastic makes them easy to scrape from the glass without damaging.

[@JamesReed-un7pf]

I have been using a hotel key with good results!

[@robertmclure1282]

Incredibly interesting! Question - did you measure temperature in the air at all(I realize difficult to do in a bag or container- but an infrared temp gun might work). Reason being - I have found Cory eggs develop and hatch much more quickly in warmer water. In the case of Corydoras cervinus, this was the only way I could get any to hatch - by keeping the eggs at around 82-83 F they would hatch in 48 hours, any cooler and out of 12 spawns - zero hatch. - Just a thought- thanks for the video- great stuff!

[@MakeMoreFish]

That's a really good point to consider. In this case I did measure the temperature with a non-contact thermometer. The eggs were at 72-74 F which is similar to the water temp for the scleromystax but might have been a bit cool for the other two, especially the loxosonus. I wonder how they might fare in warmer temperatures.

[@BrandonRoman-x7z]

I have been struggling with fungus, if this saves my fish you are my hero

[@jackweers2434]

Have you tried keeping them on a vertical surface out of water and misting them? Seems like it might be another possible solution to combat persistent fungal issues.

[@MakeMoreFish]

Yep, could be. It's worth trying

[@danielthompson3205]

The round mat can be adhered to a backing for that extra weight to sink.

[@johnkossen4821]

Really interesting project!

[@Bekateen]

Love this video!

[@simtalkayak]

What about folding the paper towel over or covering the eggs with another cotton pad, to keep the humidity as high as possible?

[@MakeMoreFish]

The inside of a sealed space should reach 100% humidity either way, but it's something to try.

[@Bekateen]

Realize that in nature, a single pair of adults needs to produce only two eggs that develop to adulthood in their entire lifetime to sustain the population. Thus a high rate of failure is not unexpected. That said, with optimal care you should expect very high success compared to nature. Also, with Amblydoras eggs and Auchenipterichthys eggs, I find waiting up to 48 hours post-fertilization before moving eggs improves survival.

[@MakeMoreFish]

I tried that with the Barbatus after we talked about it and it worked perfectly! Great hatch rate on the first attempt.

[@davidramsaur1984]

Happy to give this a shot for the next spawn of angelfish eggs I have! Should have another spawn in a week or so.

[@MakeMoreFish]

Let me know that goes if you do try it. My suspicion is it would work on most eggs, especially adhesive ones.

[@zqiix]

this was very interesting howver would the tests not be more accurate by using the same species eggs from the same school of corys?

[@tigercow]

Yeah, but it's whatever lol

[@arman_2215]

I will be your first buyer of shipped Cory eggs 🔥

[@TheOriginalBrian]

Interesting...I've done this with Killi eggs before...now you got me thinking.

[@crackypot5359]

Hey, I loved this video! You probably get a lot of people asking this, but are you still trying to breed the chili rasboras? I remember one of your shop talks from a few years ago

[@MakeMoreFish]

Not actively, no. There isn't another angle of approach I have in mind that would change results. When I learn something promising, I will certainly keep trying.

[@aw1qp1wa33]

have you bred pea puffers before? looking for any tips and tricks for them

[@MakeMoreFish]

I have not but I would like to

[@lukewang1997]

How does the spinal defect rate compare to the low fertility rate when rearing in a fry tray?

[@MakeMoreFish]

I think it nets out about the same. The extra viable eggs are balanced by the greater number of non-viable fry. I don't think it's an ideal standard practice but it's cool to have a way to completely remove fungus from the equation if you need to.

[@danielthompson3205]

I will 100% give this a go with my pandas.

[@plantedgoldies8121]

Will you still be doing a separate video on Barbaus Cory's??

[@MakeMoreFish]

Definitely

[@plantedgoldies8121]

@@MakeMoreFish Need that barbaus video!! lol.... love the content!!!

[@nicholaskritz9323]

killi eggs are built to incubate out of the water but this is a wild idea! wonder what other species this could be used for

[@MakeMoreFish]

I wonder myself. Probably many species.

[@wheatonderek]

I've had Cyprinella gibbsi eggs shipped to me by a friend out of water. They're crevice spawners so he stuck the whole egg harvesting apparatus in a breather bag (filled with air) and shipped it to me like that. I was initially shocked when I opened the box since he hadn't told me he was sending them this way, but I had great success hatching them. So it works with at least some killifish, cory, and cyprinid eggs! Who knows what other species it might be applicable for!

[@fidenciociprian6151]

you should try to breed one of the pygmy cory species like habrosus

[@DavidTorres-fb9lh]

I’ve heard of people doing this with rainbows , cool to see it with other species

[@stevethomas4491]

Not quite the same but similar to how Salmon eggs are treated before shipping to hatcheries.

[@astralhorses9559]

ngl, now I wanna try this with some of my egglayers.

[@MakeMoreFish]

Let us know how it works

[@astralhorses9559]

​@@MakeMoreFish I will!

[@theaquascapecorner]

i think this would well with rainbows as well

[@MakeMoreFish]

I suspect so

[@Peterthegreat1234]

Why not simply flip over that circular pad ? So you don’t have to manhandle the eggs and you can watch the fry drop down ? Similar to the bubble nest of labyrinth fish ?

[@MakeMoreFish]

Because it might sink later and smother them. Plus the cotton would fray and probably tangle fry as they escape. Really not a good material choice so I will find something else if I do this again. There is also a technique to grasping the eggs between two fingers. You press the fingers together in the middle to form a hinge and then roll both fingers gently forward so that the pads make light contact with the eggs. It might look rough but there's actually very little pressure applied to them. It's a routine handling activity.

[@NYGOLD]

You son of a b****, now I have to try this. What if you glued a small flat rock under the round cotton pad? Then you can submerge the entire pad and it's one less time you have to handle the eggs. Amazing content as usual!!!! 👍👍👍👍

[@MakeMoreFish]

The cotton pad for the loxozonus actually did sink and as I watched the cotton spread out in the water, I immediately decided not to leave it in the tray. I was imagining fry wrapped up and caught in all the strands and it suddenly seemed like a terrible idea. Some other material that is absorbent but doesn't fray might be perfect.

[@ultralord7027]

How about a mesh that can be placed on top of the cotton pad? Course enough to let water through but thin enough to not let the eggs fall through. Once ready, pull up the mesh and drop it in water