Steve Buce
Member
There’s an Old aquarium Coop YouTube vid, where he visits Eric Bodrocks fishroom, he talks about lots of strategies for breeding Corydoras, dry seasons, botanicals,food( including crushed snails), pheromones etc
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MTV-Kribs
- Thread starter ScareCrow
- Start date
ScareCrow
Member
I like that video, there's also a couple aquarium co-op videos of Eric Bedrock presenting a of talks about breeding corys/plecos. LRB also has a couple of videos at Eric and Regina's fishroom.
I went back and watched some of Mitchell Broomes' videos and read his replies to comments. He gives a detailed account of what he does to spawn them in the replies to this video. As Conort2 says I think it's about keeping them in the dry season state longer than I did.
They’re in perfect condition, I recon with a longer dry season you might be in luck.
ScareCrow
Member
I collected some Corydoras duplicareus eggs from my main tank a little while back. They've grown quite nicely so might have a go at breeding them with more purpose.
There are actually 5 but one was out of frame. Despite being in with approximately 60 gold lasers of a similar size they stick together as a species specific group. I think it shows the importance of keeping them in groups and not just keeping one of each species, assuming they'll form a group just because they're all Corydoras.
There are actually 5 but one was out of frame. Despite being in with approximately 60 gold lasers of a similar size they stick together as a species specific group. I think it shows the importance of keeping them in groups and not just keeping one of each species, assuming they'll form a group just because they're all Corydoras.
ScareCrow
Member
So after 10 months of trying I have eques fry!
They're currently 2 weeks old.
I've had 3 spawns in total, the first was 23/07/24, the second 25/07/24 and the third 11/08/24.
I'm going to write a spawning log on planet catfish when they get to around the 2 month mark but happy to put my notes here if there's any interest. In short a dry period wasn't required just very stable conditions and no water changes for several weeks. I fed a lot of live food for the first two spawns but the last spawning happened after having fed just dry food for 2 weeks.
They're currently 2 weeks old.
I've had 3 spawns in total, the first was 23/07/24, the second 25/07/24 and the third 11/08/24.
I'm going to write a spawning log on planet catfish when they get to around the 2 month mark but happy to put my notes here if there's any interest. In short a dry period wasn't required just very stable conditions and no water changes for several weeks. I fed a lot of live food for the first two spawns but the last spawning happened after having fed just dry food for 2 weeks.
That’s great, as you know not many people succeed with this species. Glad to hear you done it without any of the extended dry season simulations people suggest.
Would appreciate it if you could post the spawning log on here too. There are quite a few members who seem to keep corydoras (I know, wrong name now).
Cheers
What's the correct name now?
John q
Member
Osteogaster eques.
To be honest I'll still be calling them Corydoras for a while.
ScareCrow
Member
Depends which species. Eques are in Osteogaster along with the rest of the aeneus genus. Corydoras still exists and thankfully they've brought back brochis.
Most concise explanation I've seen:
ScareCrow
Member
ScareCrow
Member
After I failed to get them to spawn for a second time (see previous page) I pretty much went in to auto pilot with them, feeding every other day just using dry food (details of foods below). They were in a 30cm cube as I'd read that smaller tanks often result in better success when it comes to breeding corys. This was too small for them long term so I put them in my 100l tank.
To reduce the shock of being moved I did a 15l water change on the 30cm cube using water from the 100l (which hadn't had a water change for approximately 2 weeks. Both tanks are pure rainwater).
After moving them they were 'surfing' the glass where I'd temporarily placed an air stone.
I initially thought that the glass surfing was a stress reaction but after a couple of weeks they were still doing it and predominantly in the flow from the air stone. So I added a 500lph powerhead at the back of the tank pointing towards the front and directly in the flow from the powerhead, I added a spawning mop.
After the addition of the powerhead they were much more active throughout the whole tank.
I upped their feeding significantly. Feeding everyday with dried food in the morning and then either live grindal worms, black worms or freeze dried tubifex in the evening. After about a week of feeding like this they spawned. I didn't do any water changes throughout, so the tank probably didn't get a water change for 5 or 6 weeks.
The first spawn I collected all the eggs I could find (87). The fertility rate was quite low though. The adults didn't eat any of the eggs, as far as I can tell. When they spawned again I left the eggs for 24hrs before collecting. I prefer to do it this way so that I can select only fertile eggs. I collected 100 eggs from the second spawn and left the rest in the tank as I don't have to grow out more.
The water and environmental parameters at the time of the first spawn were:
Atmospheric pressure 1021millibars (met office) pressure forecast to drop 10 millibars over 2 days after spawning.
Waning Gibbous phase of the lunar cycle. 94% illuminated (space.com)
TDS 66
Temp 23c
Gh4
Kh0
Dry food mix
Dr bassleer regular, garlic, acai and chlorella
Fluval bug bites (colour enhancing)
TA aquaculture astaxanthin
Tetra tabmin
Tetra prima
Freeze dried decapsulated brineshrimp
To reduce the shock of being moved I did a 15l water change on the 30cm cube using water from the 100l (which hadn't had a water change for approximately 2 weeks. Both tanks are pure rainwater).
After moving them they were 'surfing' the glass where I'd temporarily placed an air stone.
I initially thought that the glass surfing was a stress reaction but after a couple of weeks they were still doing it and predominantly in the flow from the air stone. So I added a 500lph powerhead at the back of the tank pointing towards the front and directly in the flow from the powerhead, I added a spawning mop.
After the addition of the powerhead they were much more active throughout the whole tank.
I upped their feeding significantly. Feeding everyday with dried food in the morning and then either live grindal worms, black worms or freeze dried tubifex in the evening. After about a week of feeding like this they spawned. I didn't do any water changes throughout, so the tank probably didn't get a water change for 5 or 6 weeks.
The first spawn I collected all the eggs I could find (87). The fertility rate was quite low though. The adults didn't eat any of the eggs, as far as I can tell. When they spawned again I left the eggs for 24hrs before collecting. I prefer to do it this way so that I can select only fertile eggs. I collected 100 eggs from the second spawn and left the rest in the tank as I don't have to grow out more.
The water and environmental parameters at the time of the first spawn were:
Atmospheric pressure 1021millibars (met office) pressure forecast to drop 10 millibars over 2 days after spawning.
Waning Gibbous phase of the lunar cycle. 94% illuminated (space.com)
TDS 66
Temp 23c
Gh4
Kh0
Dry food mix
Dr bassleer regular, garlic, acai and chlorella
Fluval bug bites (colour enhancing)
TA aquaculture astaxanthin
Tetra tabmin
Tetra prima
Freeze dried decapsulated brineshrimp
ScareCrow
Member
3 week old Eques.
I've noticed more variation is size than I'm used to with my gold lasers and duplicareus. As mentioned there are fry from two separate spawns, which were 4 days apart. This might account for some variation but some fry are significantly smaller than the rest. I guess this might just be genetic, as otherwise they seem to be growing well.
I've noticed more variation is size than I'm used to with my gold lasers and duplicareus. As mentioned there are fry from two separate spawns, which were 4 days apart. This might account for some variation but some fry are significantly smaller than the rest. I guess this might just be genetic, as otherwise they seem to be growing well.
ScareCrow
Member
Unfortunately shortly after my last post the female kribensis I have in the tank with the eques suffered a bacterial infection, which spread to the eques juveniles. I lost the majority of the juveniles which was pretty soul destroying. Especially as it was my fault. The filter hoses had become restricted by detritus and bacterial growth, which I hadn't noticed. Fortunately 8 eques juveniles and the female krib survived and are doing well. Despite treating with Esha 2000 the adult eques continued to spawn so I collected some more eggs, which I placed in another tank and they're doing fine.
ScareCrow
Member
I wanted to see if the previous spawns were a fluke or if the spawn was the result of moving tanks. I tried the same approach as before (see above for details) essentially no water change, feed heavily while maintaining good water quality and increasing flow. To my relief it worked.
The spawn that I got was much smaller, there was only one day of spawning despite continuing to feed heavily after. From the 30, what appeared to be fertile eggs I collected, I've only managed to get 10 fry. These are now about 1 week old. So I wonder if there's a seasonal element at play. Something to try next year.
Here are the previous fry now approximately 5 weeks old.
The spawn that I got was much smaller, there was only one day of spawning despite continuing to feed heavily after. From the 30, what appeared to be fertile eggs I collected, I've only managed to get 10 fry. These are now about 1 week old. So I wonder if there's a seasonal element at play. Something to try next year.
Here are the previous fry now approximately 5 weeks old.
ScareCrow
Member
ScareCrow
Member
Latest addition to the breeding log (realise this thread is has become no longer about a planted tank anymore).
Apologies for the essay, hopefully the pics at the end make it worth the read.
There's a section in bold that if you have CW111 I'd be grateful if you could read.
After breeding eques I felt a bit more confident so took the plunge and got some CW111s. I really wanted Robineae but they'd sold out by the time I'd procrastinated enough to open my wallet. Costly mistake when the CW111s were 3x the cost.
Anyway I got 6, 6 months old F2s at the end August. Promptly lost 2, which was a total shock given the tank they went into had 40 gold lasers in it the day before and had seemingly been fine until that point. This made me panic but after a filter clean, daily water changes and some reassuring words from @Conort2 all was well. On reflection I had watched a video on Below waters YouTube channel and he mentioned that they come from very clean water. I'm putting the deaths of the 2 fish down to bacterial load as the only sign of anything wrong was some red streaking along the edge of the scales on one of the fish but can't be 100%.
I replaced the 2 that died with 2 F1s when they became available. As more people spawn this species I'm worried that not enough attention is going to be paid to genetics. Although breeding F1 and F2 isn't ideal it's better that just F2.
If anyone has any CW111s not from GM aquatics and would like to do a swap to diversify genetics please let me know.
After almost 3 months of daily 20% water changes and twice daily feedings primarily of blackworms and grindal worms, they started showing signs of breeding activity.
The males are still very young so don't have the most dramatic dorsal fin extension and it appears that I might have only one female but I've managed to collect ~30 viable eggs.
Apologies for the essay, hopefully the pics at the end make it worth the read.
There's a section in bold that if you have CW111 I'd be grateful if you could read.
After breeding eques I felt a bit more confident so took the plunge and got some CW111s. I really wanted Robineae but they'd sold out by the time I'd procrastinated enough to open my wallet. Costly mistake when the CW111s were 3x the cost.
Anyway I got 6, 6 months old F2s at the end August. Promptly lost 2, which was a total shock given the tank they went into had 40 gold lasers in it the day before and had seemingly been fine until that point. This made me panic but after a filter clean, daily water changes and some reassuring words from @Conort2 all was well. On reflection I had watched a video on Below waters YouTube channel and he mentioned that they come from very clean water. I'm putting the deaths of the 2 fish down to bacterial load as the only sign of anything wrong was some red streaking along the edge of the scales on one of the fish but can't be 100%.
I replaced the 2 that died with 2 F1s when they became available. As more people spawn this species I'm worried that not enough attention is going to be paid to genetics. Although breeding F1 and F2 isn't ideal it's better that just F2.
If anyone has any CW111s not from GM aquatics and would like to do a swap to diversify genetics please let me know.
After almost 3 months of daily 20% water changes and twice daily feedings primarily of blackworms and grindal worms, they started showing signs of breeding activity.
The males are still very young so don't have the most dramatic dorsal fin extension and it appears that I might have only one female but I've managed to collect ~30 viable eggs.
ScareCrow
Member
Yeah I was really surprised. The breeding report on planet catfish says from about 10 months which I guess these are pretty close to.
The males are about 20mm and the female is about 30mm. I've not kept track of growth but I'd say the males haven't grown much since I got them. Where as the female looks like she has swallowed one of the others.
ScareCrow
Member
Wow, they really are small.
Great news with the fry. Are there any species in your collection you haven’t managed to spawn yet?
