Questions about Cories

Title: Questions about Cories… 🙂
Post by: Mperor on July 18, 2006, 04:25:30 PM
Hey guys…

Well, cories just caught my attention again, and they’re telling me that I should bring some home… 😛

But before I do, I wanted to know some facts about them – been reading a little here and there, thought there would be extra info here. 🙂

1-Are they any threat to 1 week old mollie fries? I have about 10 in my 10g now, they’re all under half an inch of so…

2-Since I have fries, I feed them crushed tropical fish flake food, which they all devour with great joy… But that’s why I was considering cories. Usually, a rather important portion of the powder sinks right away, and the fries don’t seem to have the habit of eating at the bottom… And I usually syphon/baster up most of it. Considering that Cories are scavengers, they would be the ideal janitors? Save for the powder, there are also many pieces of flakles that sink to the bottom, so I believe they(cories) will have enough food.

3-How many cories should I get to form a “school”? The minimum number would be best, because I want my tank to be the least crowded possible…

4-Do they need gravel?

5-Do they need hideouts? Do big coffee cups put down sideways work?

And just FYI, I most likely would be getting albino cories – they look so cute!

Title: Re: Questions about Cories… 🙂
Post by: Mumusuki on July 18, 2006, 05:04:31 PM
I can answer your fry question. I keep cories with my guppy and platy fry from day one in the fry tank. I have never noticed any losses.
They really DO pick up all of the crushed flakes too!

Title: Re: Questions about Cories… 🙂
Post by: TheGreatBlueDiscus on July 18, 2006, 05:24:47 PM
Hi there,
first to let me clarify, the tank is 10g right?
If so lets try some answers.

1) Yes, most cories are fine with small fry. Unless
the fry is sitting on the gravel bottom, its unlikely
the corys will get a chance to eat them. Any frys sitting
on the gravel probably should be culled anyway, so
it wont really matter much. Your losses will be neglible.

2) Yes, the cories will eat little bits of fish food.
You may want to also drop a shrimp pellet or 2 in
at night for the cories to ensure they get enough food.

3) Corys are schooling fish. The minimum number should be 5-6 or more if possible. I would go with 5 minimum.

4)No they dont need gravel…..they actually prefer sand or very small rounded gravel, but a bare bottom tank would be fine for them, long as they have lots of places to hide like caves.

5)Yes, they need hideouts. If you have no plants, go with caves. Pick somethin large enough all the cories can hide in together with comfort…as they will mostly hang out together.

6) Albino Cories….not a good choice for a 10g tank.
Albino cories are usually either species C. Aeneus, or species C. Paleatus. Both grow to 3 inches and beyond in large old females. Even 3 would be enough to fully stock a 10g tank. I would leave the larger cories like these 2 species, metae, and the laser cories in 20g tank minimums. I have 7 of the Aeneus Corys in my 25g tank, and they are all hitting 3 inches now, at about
3-4 years old, with one big female way outsizing the rest, but shes older, about 5 years…..the remnant of the first group of cories I ever had….whose companions all died cuz I added aquarium salt to the tank. Only managed to save the one.

For a 10g tank, try to go with a cory that maxes out at 2 inches. Heres some common cory types that you could easily pop 5-6 of in your 10g tank:

Ambiacus / Aggassizi

Most types of corys are smaller, and grow only to 2-2.5 inches, only a few grow larger, namely the Metae/Bandit cory at 3 inches, the Aeneus and Paleatus at 3-4 inches (the bigger ones seem to be the long fin varieties),
and Emerald Cories – really Brochis Splendens, that easily can reach 4-6 inches.

Hope this helps!

Title: Re: Questions about Cories… 🙂
Post by: LittlePuff on July 18, 2006, 06:20:01 PM
5. They like hiding under things, if you could find a decoration that would do that.

Title: Re: Questions about Cories… 🙂
Post by: Mperor on July 18, 2006, 07:47:40 PM
Wow, this is really cool info, thanks all!

I see…

Many of those scientific names, lol, might haveto write them down and check at my LFS! 🙂

Are they an eager eater though? And do they eat during the day? Becaus e I feed my fries twicer a day, usually once during morning, and in the evening… Most of the time, the food would drop during daylight. (I jotted down about the shrimp pellets – will get if I’m getting some cories… )

Also, for the hideouts, do they have to be dark?

Because I do have some “cave” elements in the tank, and they’re actually cups put down sideways. Occasionally, I see the fries hiding inside, but since they’re facing the room, they get light. I could always get some flower pots and maybe drill an entrance on the edge, then put it down face down… But then, I wouldn’t know what happens in there lol.

Has any of you ever heard of the Peppered Cory? If my memory serves me right, that’s the other type of cories they have at my LFS… Will they be too big for a 10g?

Title: Re: Questions about Cories… 🙂
Post by: dalto on July 18, 2006, 08:09:40 PM
The cories will scavenge the tank for food. Even if they do not eat while you are feeding, they will eat later on. You should try to vary their diet a little by providing them actual food once in a while though.

Peppered Cories are the same as Corydoras Palateus mentioned above. They are one of the largest(the largest?) species of Corydoras.

Title: Re: Questions about Cories… 🙂
Post by: Mumusuki on July 18, 2006, 08:20:28 PM
Ya, my cories usually wake up when they notice the fry moving around a lot from the feedings. They pick a little, but then at night, when the lights are off, I do see them very activly digging in the gravel for the extra food from the day.

Title: Re: Questions about Cories… 🙂
Post by: TheGreatBlueDiscus on July 18, 2006, 09:02:03 PM
Yep Pepper corys are one of the largest species of corys.
Too large for a 10g tank.
They prefer dark caves

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