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I wouldn't put just three tetras or barbs together. But then again, they are in totally different orders than corydoras. Some fish need more in their school than others.

Wow...this thread seems to have gone astray. If anyone would like to post to help Gill please do so here.

The discussion of wether or not different species of corys will school together can be continued here

Jason

[span class="edited"][Edited by jason_r_s 2004-07-02 00:50][/span]

Ya hit the nail on the head there "me is already in use"

The wild is much different then our tanks, IMO
Though we try to immitate it
I think that when different corydora species are kept in groups of less than 6 they will shoal with each other, to make up a school
and When different corydora species are kept in groups of more than 6 they will only school with their own species

Cories will not school with other species of cories. I am not too sure about albino cories and bronze, maybe someone can answer that for me to clear it up. But I would say stick with one species of corydoras, it will look better anyways. So many different kind would make the tank look messy.

For a centerpiece fish I would say a Dwarf Gourami. They are mainly peaceful and dont get too big. Just make sure not to overstock, they have quite a large bio-load.

Ok, for a final stock I would say:

1 Dwarf Gourami(M)
6-8 Blue Tetras
3-4 Swordtails (1M, 2-3F)
6 Cories

I've never seen them separate like that in my 3 years of keeping Corydoras.

In the tanks at my LFS they keep multiple species of cories in each cory tank. They are always in seperate schools until somebody sticks a net in the tank to catch some of them. Sure, they do enjoy eachother's company, but they still aren't as happy when there isn't enough to make a proper school.

With about five C. aeneas and six C. arcuatus, I found they stuck together. With about a dozen of each, they segregate themselves utterly except at mealtimes. I'd say that's a pretty good proof of Janna's and my point.

EDIT: Er, no longer Peach Fuzz, eh? Oops!

[span class="edited"][Edited by LittleMousling 2004-06-20 21:09][/span]

-Molly
Visit shelldwellers.com!

If you take 5 bronze cories and then move your drawers, I bet they all scatter too. If they school interspecifically in the wild, then they'll do just fine schooling interspecifically in the fish tank.

Cories will school with others of different species because they are scared. My black-fin cories and peppered cories school together because they are so skittish and they try to find strength in numbers. My 5 black-fin cories usually school together, and try to ignore my 3 peppered cories, but as soon as somebody comes in the room and starts opening drawers of the dresser that the tank is on they go racing across the tank to find my peppered cories, and vice-versa. I AM getting 3 more black-fin cories and 5 more peppered cories as soon as the LFS gets some in, I'll have 2 schools of 8

So cories will school with other species in the wild, that goes to show that they will accept eachothers company and that their school of 50 still isn't big enough so they go find another school of 50...

I have a 29 gal aquarium with good aeriation, and many artificial plants. I was going to buy some more fish tomorow. I already have 2 giant danios, 1 male sword tail, 2 blue tetras, and a leporinus facitus. I would like to get a few more tetras, a female swordtail, 3 corys, and 2 silver dollars. I know the giant danios are not ideal for this tank and they are schooling fish. I like them a lot but are not going to add any more. Is this too much.

IME, cories only group together when they don't have a sufficient school of their own. When I had only 5 skunk cories, they tried to hang out with my school of trilineatus cories. When the number was increased, they ignored each other again.

If you say cories will school with different species, then do tetras school with other species of tetras? If I put a school of bleeding heart tetras with a school of neons, would they school? I higly doubt it.

So, Aggie, would a group of 3 tetras be ok? Or how about 3 tiger barbs?

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They shade the glow of it with their mossy-misty costumes,
They wear masks of silk, porcelain, brass, and silver,
So as not to mislead with their own, ordinary faces.

Corydoras has been found to school interspecifically in the wild.

If your finances can afford it get a bigger tank. if not return your giant danios and DO NOT get the silver dollars. and the last post is correct. the breed of the croy's don't have to be the same.
This does not aply to fish:
Fish of a fin swim together.
basically do what is naturally and environmentally safe for the fish and safe for your wallet.

Not really - schooling and shoaling are visual behaviors (watch a tank of Blind Cave Tetras and it's obvious that, although they're very good with all their other senses, they can't school at all). This is why schooling fish have such distinctive patterns or colors - so they can easily arrange themselves. Kept alone, cories may "group" together out of abject terror, sure - but that's not schooling, it's near torture. This is the equivalent of a petite woman fearfully pulling her dog closer on a dark street whenever someone passes by - but for the cory's entire life. Not so fun.

-Molly
Visit shelldwellers.com!

Week end is right. Most Corydoras species will school interspecifically and even with members of the genus Brochis. Definately get rid of the danios and Leporinus, and get more tetras. Get some female swords too, I'd say three, but two would be sufficient. If you wanted a centerpeice to replace the Leporinus, try a smaller peaceful neotropical/west african cichlid, like a rainbow cichlid. I'd stock your tank with:

1 Rainbow cichlid
4-5 Corydoras sp.
6 Tetras
4 Swordtails (1 male/3 female)

EDIT: Corydoras definately does school interspecifically, I've done with peppered, julii, and bronze Corydoras. A cory school is also sufficient at three for most species.

[span class="edited"][Edited by aggiemarine 2004-06-20 20:26][/span]

No, that isn't true. Schooling is based on appearence alone, so if the cories don't look the same, they won't school. *sigh* How many times to I have to repeat this?

Cories are schooling fish. They are like tetras and most barbs. You need to have at least 6 in a school. They need to be the same kind to be a school.

While there are exceptions, like with C. barbatus, you really need to keep cories in groups of 6 or more.

You wouldn't mix and match a "school" of tetras, would you? If you did, no one would say it was an acceptable school. The same goes for cories.

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They shade the glow of it with their mossy-misty costumes,
They wear masks of silk, porcelain, brass, and silver,
So as not to mislead with their own, ordinary faces.

Cory's doesn't have to be the same kind in order to form schools...they can be different kinds and still form close schools

Ok, so right now you have:

2 giant danios
1 swordtail
2 blue tetras
1 Leporinus fasciatus (I think that is what you meant)

Leporinus get 12 inches long and are notorious fin-nippers. They should be kept with fish their own size. You either need to get a bigger tank for this fish, or return it. The same goes for the giant danios. They are schooling, which you know, and they get 6 inches long. They aren't suitable for a 29 gallon.

Cories are schooling so you should get 6 of them. Remember, this is 6 of ONE kind. Silver dollars get too big for your tank. They are schooling and do best in a 6 foot tank.

Maybe you could have:

3 swordtails (They should be kept in a ratio of 1 male/2 females)
8 blue tetras
6 cories
1 dwarf gourami

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They shade the glow of it with their mossy-misty costumes,
They wear masks of silk, porcelain, brass, and silver,
So as not to mislead with their own, ordinary faces.