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jsuereth
Regulars
Joined: 22 Aug 2010
Location: Pittsburgh, PA USA
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 Posted: 2012.02.25(Sat)13:00 Post subject: Juli Corydoras breeding |
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Is it possible, in a heavily planted tank, to have Juli Corydoras breed successfully without any intervention? This is my only shrimp-less tank, and I think I just saw, today, a juvenile corydoras that's smaller than any I've purchased.
What do I need to do to keep the little guy alive? |
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nikelodeon79
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Joined: 08 Nov 2007
Location: Wisconsin, U.S.A.
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| Posted: 2012.02.25(Sat)15:50 Post subject: |
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Yes its absolutely possible. If he's already big enough to be close to the size they sell them in the LFS, he'll probably survive without any intervention. Adult corydoras usually will eat the eggs and teeny tiny fry, not juvies.
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Last edited by nikelodeon79 on 2012.02.27(Mon)9:52; edited 1 time in total |
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jsuereth
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Joined: 22 Aug 2010
Location: Pittsburgh, PA USA
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| Posted: 2012.02.27(Mon)9:18 Post subject: |
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Well, I got a shot proving it. Here's the (probably sole) surviving spawn:
Appears to be hanging around two big corydoras, perhaps parents?
So the next question is, how do I duplicate this process?  |
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diademhill
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Joined: 18 Apr 2007
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| Posted: 2012.02.27(Mon)9:46 Post subject: |
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To get your Corydoras trilineatus (they aren't C. julii) to spawn again feed them lots of meaty foods, eg bloodworm, for a couple of weeks and than do a large water change to trigger spawning.
Adding some marbles or large smooth gravel to the tank bottom will allow more chances for the fry to survive. |
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nikelodeon79
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Joined: 08 Nov 2007
Location: Wisconsin, U.S.A.
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| Posted: 2012.02.27(Mon)9:53 Post subject: |
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Question: do you always keep them in a bare bottomed tank??
I would definitely add some smooth, small grained sand for them. Keeping corydoras in a bare tank isn't a good idea.
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jsuereth
Regulars
Joined: 22 Aug 2010
Location: Pittsburgh, PA USA
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| Posted: 2012.02.27(Mon)11:50 Post subject: |
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| diademhill wrote: | | To get your Corydoras trilineatus (they aren't C. julii) |
Will have to chat wtih pet-shop owner about that. Not that I mind much, but I was hoping to have a single-species "leapard" cory tank. trillineatus are fine. How can I "id" the difference between the two? I purchased them in two waves.
| nikelodeon79 wrote: | | Question: do you always keep them in a bare bottomed tank?? |
No. There's a very thin layer of sand on one side, and the corydoras are usually chilling in the terracotta pots (which has sand on top of dirt). They all have their barbells and are pretty active in the tank, so I assume they're doing OK. I was planning on this tank being a short term thing, but haven't had the funds nor time to repair my 125G, so started stocking the tank to help the plants. Perhaps soon I'll just put in a substrate + add some blackworms for the corydoras, since it'll likely be another 6 months before the main tank is repaired. |
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kimura
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Joined: 13 Apr 2004
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| Posted: 2012.03.01(Thu)11:29 Post subject: |
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I've bred my panda cories and raised 6 fry to adults. Generally a massive
water change with slightly cooler water along with some good foods can trigger spawning. This replicates spring coming and the melting montain snow draining into their rivers cooling the water down some.
I've found that panda fry are very sensitive to water quality and water changes. I can't speak about the survivability of any other cory species. |
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