Julii female eggs??

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Plakat
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Joined: 02 Aug 2010, 09:04
Location 2: Vancouver Island BC

Julii female eggs??

Post by Plakat »

So I have a 10 gallon tank with 3 cories in it... I used to have a 33 gallon tank with 12 cories in it but these three are the only survivors of a Columnaris outbreak in that tank. I have 1 female (apparently) Julii Corydora and 2 male (apparently)Bronze Corydoras that have survived. They were a gift from my boyfriend. Well the Julii has been laying eggs all over my tank and I can see what looks like grains of sand in them, when I shine a very bright light on them.... She is still laying eggs EVERYWHERE too, help what do I do? I have never had Corydoras lay eggs before...

Tank stats
Ammonia - 0
Nitrogen-0
Nitrate-0
Sand substrate with horn wart java fern and 2 pieces of driftwood.

I have 6 white cloud minnows and a rosy red minnow (again only survivor of ich and another parasite) No heater, and a 50w sunlight bulb thing....
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MatsP
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Re: Julii female eggs??

Post by MatsP »

Nitrate shouldn't be zero, realy. And your fish is nearly certain to be - these are almost always what you get when the tank lable says C. julii - real C. julii are extremely rare, almost always clearly labeled as "true julii" and marked with a price to match their rarity.

Female corys (or mixed groups of male/female of different species) can lay eggs, that's been said many times. Get a male or two for her, and you should be able to get some fry - you may need to collect the eggs and put them in a frysaver to prevent the fry from being eaten.

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Mats
Plakat
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Joined: 02 Aug 2010, 09:04
Location 2: Vancouver Island BC

Re: Julii female eggs??

Post by Plakat »

the price for this fish was 15 dollars and the juliis they have now do NOT look like her there are MANY differences. She does however look like a true Julii when I google image true julii corydora. She is my pretty girl... or was untill a few days a go when she went from being slightly fat to HUGE...

The tank stats are probably off because I just did a 100% change the other day 4 days ago... there are 2 filters in the tank.. both for 10 gallon.
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MatsP
Posts: 21038
Joined: 06 Oct 2004, 13:58
My articles: 4
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My cats species list: 117 (i:33, k:0)
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My BLogs: 4 (i:0, p:164)
Spotted: 187
Location 1: North of Cambridge
Location 2: England.

Re: Julii female eggs??

Post by MatsP »

will show the true species, and in at least one of the two different species pages there is a description of what the differences are [aside from where they are found]. $15 is expensive for C. trilineatus, but would definitely be a bargain for true julii. C. trilineatus is quite variable...

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Mats
Plakat
Posts: 7
Joined: 02 Aug 2010, 09:04
Location 2: Vancouver Island BC

Re: Julii female eggs??

Post by Plakat »

Why does it matter what the female is, if shes a true julii or a false julii... she is BEAUTIFUL and I dont care what she is I love her anyways. They CANNOT get in any more of her type as apparently its hard to find... They have Juliis now there but they DO NOT look like her... and are NOT the same type.... She is happily schooling with my bronze boys and as long as she is eating and being normal what does it matter? Sorry for being cranky


As to the eggs which is my real concern. I have NO issue with the fact that the young will be hybrids... I kinda like cross breed animals MORE then pures so.... My only concern is what do they eat when they hatch... How will I know they have hatched. Are they okay in a breeding net between the filters (water movement)? Will they get enough food there? should I drop in a shrimp pellet? can they eat that?? Mom is still laying eggs like crazy but my Rosy Red is eatting the eggs like they are a delicassy. Wont eat the snail young anymore but Guess thats what the assasin snails are for.
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kim m
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Re: Julii female eggs??

Post by kim m »

Don't worry about the fry.

Probably the females is laying eggs on her own without fertilization. I have seen this on some occasions. The "grain of sand" sounds like unfertilized eggs to me.

Have you actually seen the fish in T-position with the bronzes?

I think they are to remote in genetics to actually do any crossbreeding. There has been a lot of work on Corys (DNA and stuff) and C. julli (or trilineatus, in this case it wouldn't matter) are very far from bronzes. Might even be put in different genera in the future :foggie:

Anyway, cory-hybrids are not appreciated at all in the hobby and I think it should stay that way. There's over 300 species to choose from and that should be enough for everyone.
Best regards,
Kim M
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MatsP
Posts: 21038
Joined: 06 Oct 2004, 13:58
My articles: 4
My images: 28
My cats species list: 117 (i:33, k:0)
My aquaria list: 10 (i:8)
My BLogs: 4 (i:0, p:164)
Spotted: 187
Location 1: North of Cambridge
Location 2: England.

Re: Julii female eggs??

Post by MatsP »

Well, I thought you were discussing the true identity of your fish. To me, it doesn't matter the least bit...

As to the hybrids/cross breeds, there is a big difference between cat moggies, mutt dogs, and hybrid species of corydoras. The key here is that cross breed cats/dogs (and rabbits, guinea pigs, etc) are the same species, just differnet breeds. Hybrids between different species, such as C. julii (or C. trilineatus) crossed with C. aeneus (bronze cory) is a bad idea, for many different reasons.

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Mats
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