Corydoras Keepers

[lionelckg]

Hi to all, can i check the follow from all the corydoras expert here.

1. Corydoras prefer running current in the water or still water?

2. What is the optimum PH range for the corydoras?

Please advise. Thanks all!

[sthh]

Hello everybody,

I am a cory keeper also.
I have about 16 normal sterbai,
1 albino bronze
1 albino sterbai
2 schwartzi
3 trilineatus
1 suspected bronze (Gleam)

My oldest cory has been with me for nearly 6 years, and hence it has a name. Gleam.
I think it's a bronze cory, and but i couldn't be sure, because it looks quite different from the bronze cory sold in most LFS


If any of you know what exactly it is, do let me know. I have been trying to find this fish some species friends.

My sterbais has been spawning, and here's a picture of a baby fish. The snail will give you a clue as to it's size.


These fishes likes to swarm together in a frantic group, and hides under the driftwood with lots of moss.


I have been trying to improve the success of my spawning sterbai, but whenever i take the eggs out of the tank, they fungied easily despite me adding methylene blue and air stone. Hence nowadays, i just leave the eggs alone in the tank for them hatch by themselves, but the survival rate is really low with other fishes around.

[nicholasliao]

Hi bro. Can share your water parameters and how you induce them to spawn?

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[sthh]

For me, i am not really an experts on these fishes, but sterbais are easy to breed, and they like our high temperature.

The tank is very established, about 8 years old. 0 ammonia, nitrate, nitrate.
They usually spawn after a water change, and i do that about twice a week.
The corys are not feed any special diet, but they are very mature. The oldest female sterbai i have is about 4 years old, but in a spawning frenzy, there are about 10 fishes involved.
The eggs are usually laid on undersides of leaves of my crypts and on tank surfaces.
When the babies are hatched, they do not get special food. they graze around substrate, which i think my tank has loads of micro-organisms, being such an old tank.
Sometimes, they are given protein rich food like frozen blood worm, but most often get to eat only hikari cory food.

[Shi Xuan]

For one moment, it looks like Emerald cory, Brochis splendens but I'm not too sure. The bronze cory that I ever kept, is the albino variant, so I cannot really tell the difference well enough.

Here's a few photos of Brochis splendens I googled that can be used as comparison, to see if any of them matches yours.


Photo taken from TFH magazine


Photo taken from Fair City Aquarist Society


Photo taken from tropicalfishfinder.co.uk


Photo taken from scotcat

[ren_hao]

Is this gravel bad for corys?

10403141584_6621d1e3bd_z.jpg

I am fishless cycling a 60x40x45 tank with Ehiem 2232
Planning to have maybe 6 leopard corys, 3 electric blue rams, 6-10 endlers guppy and 6-10 cardinals

[stormhawk]

Looks fine to me. In the wild some species live in streams with rough-edged gravel and some over sandy bottoms. Keeping the substrate healthy and ensuring the water is in good condition will be more important in the long run. However, with this gravel they will not be able to dig deep for food. If you intend to see their behaviour to the fullest, a thin layer of sand and some Tubifex and you will see them going turbo into the sand to dig out the worms.

[ren_hao]

Hi Stormhawk,
Maybe I should go add some sand in a corner of the tank and make it my cory feeding zone.

I have a 1.5inch common sail fin pelco in my current nano tank. I am thinking of moving it over to the later tank. Is it a good idea to keep cory with pelco?

Are cory poo machines like pelco?

[stormhawk]

Corydoras are not poo machines like plecos, but they like clean water like most other fish. Try not to add sand to your tank, if the gravel is already this way do not add sand. If you like you can set up a separate tank if you wish to see their behaviour, but they will be just as happy in the current setup.

[FaRnieGuy]

Anyone tried feeding frozen daphnia to corydoras? Will frozen bloodworms be too big for C.hastatus to feed on?
My Cory tank has 18 C.Hastatus, 5 C.Panda and 5 C.Paleatus.

Staying in sengkang, have no idea where to find tubifex for them.
Got some tubifex from Y618 previously, but got no time to go back.


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[CoryDorus]

Daphnia is excellent just be aware of unwanted parasites.

I prefer Freeze dry tubifex. Soak and squeeze the cubes before feeding it to them.
The tank will get a little messy though.

[FaRnieGuy]

Can I just throw the whole cube of freeze dried tubifex into the tank?

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[FaRnieGuy]

One more question..

Let's say if my corydoras were to lay their eggs on the glass surface, do i just leave it there or removed and place in another tank/breeding net?
Will the other corydoras snack on the eggs?

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[stormhawk]

Hello Sherman,

Frozen bloodworm is just too big for most of the dwarf cory species, except for large individuals and with a small-type bloodworm in the cubes. Sometimes you have to ask the shop staff for "small-size" FBW. If you want a suggestion, feed them with Hikari Carnivore Pellets or Sera Viformo/O-Nip tablets. Frozen daphnia is fine but sometimes they don't eat it and the food goes to waste. You can also feed the hastatus with BBS if you have the time to hatch the brine shrimp eggs yourself.

If you find Corydoras eggs and there are other fish in the tank, roll them off gently with your fingers or use a small shrimp net to coax them off the glass. Transfer the eggs slowly to a separate container or an external breeder box with flow from the parents tank. Make sure the eggs are constantly in water and do not expose them to the air. While in the rearing container, you can add in some Cherry Shrimp and they will keep the eggs free of contaminants. Fungused eggs (white in color), should be removed carefully if you see them. Take extreme care NOT to burst the fungused eggs while in the water. Ensure that the rearing container has a good flow of water and/or aeration and in a few days, with luck, you will see fry hatching. Only feed them when you see the fry swimming around freely. At that stage they will take crushed flakes, BBS and other appropriate sized foods.

[FaRnieGuy]

Hello Sherman,

Frozen bloodworm is just too big for most of the dwarf cory species, except for large individuals and with a small-type bloodworm in the cubes. Sometimes you have to ask the shop staff for "small-size" FBW. If you want a suggestion, feed them with Hikari Carnivore Pellets or Sera Viformo/O-Nip tablets. Frozen daphnia is fine but sometimes they don't eat it and the food goes to waste. You can also feed the hastatus with BBS if you have the time to hatch the brine shrimp eggs yourself.

If you find Corydoras eggs and there are other fish in the tank, roll them off gently with your fingers or use a small shrimp net to coax them off the glass. Transfer the eggs slowly to a separate container or an external breeder box with flow from the parents tank. Make sure the eggs are constantly in water and do not expose them to the air. While in the rearing container, you can add in some Cherry Shrimp and they will keep the eggs free of contaminants. Fungused eggs (white in color), should be removed carefully if you see them. Take extreme care NOT to burst the fungused eggs while in the water. Ensure that the rearing container has a good flow of water and/or aeration and in a few days, with luck, you will see fry hatching. Only feed them when you see the fry swimming around freely. At that stage they will take crushed flakes, BBS and other appropriate sized foods.

ok noted, thanks for the information.
I only have 5 C.Panda, 18 C.Hastatus, 5 C.plateus, 1 Whiptail Catfish, 2 Oto, 2 Horned Nerite Snails and 5 leopard cory.
do you think I need to remove the eggs to another tank in this case?
instead of Cherry shrimps, I assume I can put in Sakura shrimps? because I have a few of them in another tank.

[joe]

has anyone seen any corydorus habrosus recently?

[ren_hao]

has anyone seen any corydorus habrosus recently?

Think i saw some at sea view, better call to confirm

[stormhawk]

Habrosus available at GC and C328 last I saw. Call to confirm availability.

@ren_hao, it is advisable if you want to raise the fry separately. Most of the time, Corydoras ignore their own eggs in the tank, but with a mixed species group, I am not sure if the other species will eat the eggs of the others. Sakura Shrimp is fine, they are basically Cherry Shrimps anyway. Use juveniles as they will be more hard working on cleaning the eggs.

[seudzar]

Curious... How you sink those freeze dried tubifex worm onto the bottom of the tank? My free dried tubifex worm can float forever.

[stormhawk]

Soak the cube in some water for awhile for the dry worms to absorb some of the water then it won't float so much.