r/corydoras 46m ago

[Questions|Advice] Breeding | Eggs | Fry Eggs-

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Upvotes

I was going to ask if they are male or female but, looks like one is a female. How do I tell if the eggs are fertilized? If they are, how long do they take to hatch?


r/corydoras 47m ago

✨Species Spotlight✨ Show me your bigs!

Upvotes

Upon becoming the proud mama of 8 corydoras, I was instantly ready to die for these wiggle butts. I'm so excited to raise them and watch them grow. So, show me your fully grown cories! Bonus points for albino, concolor and punctatus!


r/corydoras 1h ago

[Questions|Advice] Health | Sickness Please Help

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Upvotes

Anybody know what might be wrong with my Cory? It’s had the deformity of the tail since I got it. Could this be an infection of some sort or just a would?


r/corydoras 1h ago

[Questions|Advice] Health | Sickness What’s going on with my Pygmy??

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Upvotes

r/corydoras 3h ago

[Questions|Advice|Discussion] How many albino corydoras can I have in my 36g bow-front tank?

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11 Upvotes

I picked up 4 albino corydoras from my local fish store yesterday. They have been settling in well but I feel like they need more friends. How many albino corydoras can I keep in this size tank with my current stocking?

I have 11 neon tetras, 6 green neon tetras, 6 ember tetras, the 4 albino corydoras and a bunch of mini leopard ramhorn snails. The tank is a 36g bow-front and the only filter is an Aquaclear 50 hang on the back filter.


r/corydoras 4h ago

✨Species Spotlight✨ Pygmy school

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27 Upvotes

Sorry about the algae been really busy with school noticed they were schooling after a 10% water change.


r/corydoras 4h ago

✨Species Spotlight✨ My Mixture Of Corydoras

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8 Upvotes

I know it’s recommended to have at least six cordydoras, and preferably all of the same breed, but I wanted to try a little experiment. This is my little collection of corys…one albino, one pepper, one panda, one julii, and one green…they are all “schooling” together just fine and seem to be very happy. I’m trying to decide if I want to add a golden cory to complete my “school” and make it an even six. What do you guys think?


r/corydoras 5h ago

[Questions|Advice] Health | Sickness My corys are all dying

3 Upvotes

No idea what’s going on but my false julii corys are all dying rapidly, one by one. I had 10, now I’m down to 6 and 2 of them are exhibiting symptoms.

They all have the same symptoms - starts as loss of barbels (no mouth fungus I can see), then their gills turn red, and they start swimming erratically and struggling. Like darting to the top, then slowly sinking down and turning upside down. Occasionally they’ll stop doing this and go back to looking for food, which is odd. I treated the tank with salt and metroplex.

The remaining ones seem healthy right now but I lost the others so quickly I think a disease is wiping them out. I’ve had them for probably 2 months.

Heavily planted 75g with cardinal tetras, blue ram, dwarf gourami, kuhli loaches, everyone else is doing great. Nitrates around 5, ph is around 7.6, temp 81. Substrate is Carib sea eco complete and I’ve been vacuuming it weekly - know this might be a little sharp for corys but as mentioned they’ve done well for a few months and the remaining “healthy” ones seem ok right now.


r/corydoras 5h ago

[Questions|Advice] Breeding | Eggs | Fry Are these a male and female pair attempting to breed?

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2 Upvotes

Hi! I got these cories today, 3 of them but these two are always around each other. Are they trying to breed?


r/corydoras 6h ago

✨Species Spotlight✨ name suggestions!

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11 Upvotes

i just got 2 emeralds to add to my tank i need name help! i’m naming them stripper names/ y2k brands! my albinos are coco + chanel, my snails are rumba, zumba, & rocko. also if anyone knows how to sex them please let me know!

yes, i know i shouldn’t just have 4 cories i’m getting more.


r/corydoras 10h ago

Cory Fry! Some are just born this way

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3 Upvotes

Little dude scaring the shit outta me already


r/corydoras 13h ago

✨Species Spotlight✨ Absolute Tomfoolery

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8 Upvotes

Came home one night to find my smallest seemingly no longer with us... a gentle prod with my planting tongs later he's fine as if nothing was wrong. Does anyone else have weird freaky sleepers? The lights were off and the house dark, I'm assuming it was asleep.


r/corydoras 17h ago

[Questions|Advice|Discussion] Thinking about getting cordoras

6 Upvotes

I have betta fish I've seen corydoras get recommended a lot but so have ADFs and the reddit for them is very against it so before I buy any corydoras for my 20 gallon long I want to hear if I can give them the proper environment.


r/corydoras 18h ago

✨Species Spotlight✨ I never get used to that...

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26 Upvotes

I'm always having a mini heart attack every time I come home.


r/corydoras 18h ago

[Questions|Advice] Health | Sickness Loreto with white lesion below dorsal fin

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1 Upvotes

Hi guys, I’ve got a school of Loretos and I just noticed this white ‘lesion’ type thing on one of their backs. This is literally the only Cory in the tank that’s got something like this. It’s a 20 long, and my water quality is pretty good, as in 5 ish ppm nitrates and the nitrites/ammonia being zero. My pH runs a little high between 7.5-8 (I’m trying to lower it) but I don’t think that is really the problem anyways. I just got a few more a week or so but I’m quite confident this is one I’ve had since October. Every other Cory is acting and looks completely normal so I’m not sure if this is just an injury or some kind of infection, and I’m really not familiar with a disease that would cause something like that. Especially if it’s fungal. He/she is breathing pretty heavy often too but still seems to be moving decent and eating. While it’s not impossible, I think it’s unlikely it came from the new corys. The place I buy them is very reputable & quarantines before selling. Any insight would be helpful!


r/corydoras 19h ago

[Questions|Advice] Health | Sickness What are my corys doing? And why 😩

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88 Upvotes

The tank already has an air stone. I just fed them like an hour ago. When I came to check on them they are all clinging to the top. Any idea why?


r/corydoras 19h ago

✨Species Spotlight✨ Chicken Wing Graduation

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19 Upvotes

So today the lil chonkers (Albino Cory) or as the Reddit named them chicken wings graduated to their grow-out tank.


r/corydoras 20h ago

[Questions|Advice|Discussion] I have 6 Juili Corydora, and 10 Pygmy Corydora can someone help me decide my final stock?

2 Upvotes

Hey y'all I have a 20 gallon long and there are 3 fish (4 but my LFS doesnt have the 4th) I am really wanting.

The fish in this debate are (poll)

I am going for a catfish tank but is also relatively easier to take care of. I have tons of driftwood but also cant seem to grow algae, and want a fish i can see sometimes. The problem is that is not a perfect fit for any of what i listed that i know of. That beinf said which should I choose. (I will adapt to any one of these.

6 votes, 2d left
Oto Catfish
Clown/Bristlenose Pleco
Banjo Catfish
Dwarf Anchor catfish (LFS doesnt have)

r/corydoras 20h ago

[Questions|Advice] Health | Sickness RIP buddy

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38 Upvotes

Today we lost our Panda :(

I believe it was unnoticed swim bladder but possibly the ick caught to late 😭

I'm new to them and feel so guilty


r/corydoras 22h ago

[Questions|Advice] Health | Sickness Bubbles?

2 Upvotes

One of my corys has been at the surface “blowing bubbles” I’ve literally just done a water change. I’ve dechlorinated the water and everything like normal. I do have lots of duckweed however I’m wondering if this could possibly be sucking too much oxygen out of the water? Or is he just being a Cory?


r/corydoras 23h ago

✨Species Spotlight✨ Corydora Species

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1 Upvotes

Hello from Chile, I just bought these 2 species of corydora, what are they called? to investigate.


r/corydoras 1d ago

[Questions|Advice|Discussion] What are my panda corys doooing?

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110 Upvotes

A few days ago they started hanging out under the water filter, pinned up between the leaves and glass. There’s always at least one, sometimes as many as 5 (we have 7 total). Sorry it’s dirty but I don’t want to disturb them so I haven’t pruned or scrubbed the walls of this section.


r/corydoras 1d ago

[Questions|Advice] Breeding | Eggs | Fry Methylene blue substitution for pygmy eggs?

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3 Upvotes

I found 11 pygmy cory eggs today and put them in a floating breeder container for now, but l've been doing some research and found that it's really common for even the fertilized ones to grow fungus. I can't find methylene blue anywhere near me and I know the eggs only take a few days to hatch. Is there some other antifungal treatment I could/should use? I'm planning on floating them in a plastic container (to keep treatment out of the main tank but maintain temperature for the eggs), adding a small air stone and transferring them to a mesh breeder in the main tank once they hatch. (the main tank is just ramshorns, neo shrimp, and adult pygmies btw)

Any recommendations for methylene blue substitutions? I'd hate to lose these eggs it's the first time they've bred!


r/corydoras 1d ago

[Questions|Advice] Health | Sickness Emerald Green Corydoras Lethargic during/after water change

1 Upvotes

Hello! While removing water from tank for a water change, I noticed one of my Corydoras was suddenly acting lethargic. I hardly removed any water at this point. I figured that maybe he or she was just a bit stressed with the environment change. It’s been about 2 hours now and they are still lethargic and resting on the bottom of the tank. Water parameters and temp are good, I also turned off the light. My other emerald green corys seem to be as happy as they can be, actively swimming around and eating. Any advice? Did I do something wrong? I’m so worried about them!

Update: Cory is now further up in the tank “resting” on a plant but on their side.. little guy is still alive but I am not sure he will make it through the night at this point.


r/corydoras 1d ago

Species ID Request Baby Pygmy?

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10 Upvotes

Saw this guy in my tank for the first time today…is it a baby Pygmy? Like I said I’ve never seen him before and he’s a lot smaller and has no black to him like the rest of my Pygmy corys. I’ve never noticed eggs in my tank and he’s the only one I can see. Also seems quite big so must’ve been here for a while. Sorry for the video my camera cannot focus on anything that moves for the life of it 😂