Help! My cories spawned! What do I do??

[itiwhetu]

More tanks Yee ha

 

[AdoraBelle Dearheart]

Still have eight little lovely babies

When I was cleaning their breeder box today, one baby was sitting side up, since it was sitting on the toe bit of the tights that gives a little dip on the bottom of the box, and I could see the metallic green cheek patch that adult bronzes have! I didn't know they developed those so young, so cute!

 

[Gypsum]

I still have seven black cory fry, and the wee fry in the L199 tank is still about. It's big enough to develop markings, and I think it's a habrosus.

 

[Ch4rlie]

I still have seven black cory fry, and the wee fry in the L199 tank is still about. It's big enough to develop markings, and I think it's a habrosus.

I have a real soft spot for habrosus cories! Really hope it is those and you can show pics!

 

[Gypsum]

Yeah, I can try. You might see some fuzzy fish-shaped grey things behind a glass.

 

[Gypsum]

I've spotted two cory fry in the L199 tank.

In less good news, I'm now counting five black corys in the fry tank, down from seven.

 

[FishGuest5123]

I still have my 4 that are almost 3 weeks old. They are huge! 2 pink eyed albinos and 2 bronze colored. They are all named. . Have my other 2 in smaller fry tank.

 

[Gypsum]

I was amazed to find a second one in the pleco tank. Who knows -- there could be more. I saw the two at the same time, hence my certainty that there are at least two. I haven't bothered feeding specialist fry food or anything, because the plecos and adult corys would have got it, and when they were in the super tiny hatchling stage, I had no idea they were there. They must have found microscopic bugs or organisms to graze on.

 

[AdoraBelle Dearheart]

Updated pics! I still have the eight babies, they vary a fair amount in size, which is funny since they were all born without a day of each other, but I guess some feed more keenly than others perhaps? But even the smallest ones seem healthy and active, so not worrying about it at this point. The biggest two are developing their adult colours!

They'll be four weeks old this coming Tuesday, going to be let loose into the main 12.5 gallon tank soon!

 

[Gypsum]

Yours are looking like proper fish now. Mine aren't quite there yet!

 

[mbsqw1d]

I think four of mine are over a month old and the others not far off. Been trying them with the adult's food and look like they're eating it ok...

 

[Gypsum]

I'm muddling through this fry thing, and OH and I are at odds. We only counted three this evening. No sign of the other two, and we are hoping they were just hiding during the count. OH is worried that the 25L tank they are living in is "doing weird things" because it's more or less uncycled, and while we borrowed sponges from an established tank when we set it up, he's concerned that a few tiny fry aren't sustaining the beneficial bacteria in said sponge. He thinks it might be better to move the three-week old fry to the L199 tank.

I'm not fully agreement with him, because it seems like everyone and their dog keeps fry in grow-out tanks so it must work, and I'm concerned that the stress of being caught and thrown into a 125L tank with a bunch of adult fish would be too much for the wee guys. Nothing in it would eat the fry, but they would have competition for food, and that tank gets blasted by three powerheads.

In other words, neither one of us actually knows what are are talking about. As I've debased myself plenty by asking naff questions on Corydoras World, I made him do it this time. But I figured I would put it to this forum.

The fry are being fed twice per day on baby brine shrimp and Tetra fry flakes. They get a daily 50% water change from one of the display tanks, and they have a thin layer of sand and an Indian Almond leaf.

If they moved into the 125, they would share it with four L199s, eight C. pygmaeus, three C. habrosus and two of their fry, two C. carlae, two bamboo shrimp, and two African fan shrimp.

What would you guys do?

 

[mbsqw1d]

I'm muddling through this fry thing, and OH and I are at odds. We only counted three this evening. No sign of the other two, and we are hoping they were just hiding during the count. OH is worried that the 25L tank they are living in is "doing weird things" because it's more or less uncycled, and while we borrowed sponges from an established tank when we set it up, he's concerned that a few tiny fry aren't sustaining the beneficial bacteria in said sponge. He thinks it might be better to move the three-week old fry to the L199 tank.

I'm not fully agreement with him, because it seems like everyone and their dog keeps fry in grow-out tanks so it must work, and I'm concerned that the stress of being caught and thrown into a 125L tank with a bunch of adult fish would be too much for the wee guys. Nothing in it would eat the fry, but they would have competition for food, and that tank gets blasted by three powerheads.

In other words, neither one of us actually knows what are are talking about. As I've debased myself plenty by asking naff questions on Corydoras World, I made him do it this time. But I figured I would put it to this forum.

The fry are being fed twice per day on baby brine shrimp and Tetra fry flakes. They get a daily 50% water change from one of the display tanks, and they have a thin layer of sand and an Indian Almond leaf.

If they moved into the 125, they would share it with four L199s, eight C. pygmaeus, three C. habrosus and two of their fry, two C. carlae, two bamboo shrimp, and two African fan shrimp.

What would you guys do?

I'd leave them where they are. Can you elaborate a bit on the 'tank is doing weird things' part?
If you're doing daily water changes I would expect that to be plenty to deal with a handful of fry.
What temp are you keeping it at? Do you spot feed the fry, have you watched them eat something?

 

[Gypsum]

I think by "weird things," OH meant he had concerns it was cycling or suffering from unstable water chemistry because there isn't enough fish waste to feed the bacteria. My argument was that the daily water changes should deal with that. Am I right? Or is he?

Temperature is 24C, and we haven't been spot feeding. But they wriggle about and act like corys when we put food in there. The five I've been seeing are all growing.

 

[mbsqw1d]

I'm certain that BB exists in an amount enough to cater for whatever available ammoniacal nitrogen there is, small or large (within reason, if theres a large amount of ammonia then there needs to be enough surface area for the BB to colonize.)
Do you have live plants in there? What are you feeding them?(sorry if youve already said)