Welcome to /r/corydoras!

I've lost 2 corys over the past 4 days and I don't know why - the first was struggling to swim with a little bit of cotton growth but nothing else obvious. The second wasn't even acting odd, I just found it dead this evening with a red belly but no external wounds. Other tank mates are 4 reticulated corys, cardinal tetras, 2 black rams and cherry shrimp. Everyone else seems fine but tank parameters are good (0ppm ammonia/nitrites, 5ppm nitrates. Does anyone know what this is/if my other fish are at risk?

white bump just found on my cory’s face today, anyone know what it might be? and how do i treat it? still behaving normally and eating. tia

Some backstory, I had a group of Julii cory cats, I lost a few a few weeks ago and have unfortunately fallen short on them and I dont have enough to have a full shoal.

For some reason I can’t find any cory’s near me, and I drove an hour to a store that only had orange laser cory’s, not julii. I bought them because they were the only cory’s I had seen in a while, will they mix fine?

So when you catch your corys spawning do you gather the eggs as they lay them or do you wait until they're done? Just curious since I gather as they lay them.

I just got a group of 5 corydoras and I barely see them eat. I have given them carnivore pellets and bloodworms but they never seen too interested. I've seen them eat some food but they mostly stay in the same spot under some driftwood. I've had them for five days now and also am going to get frogbit as cover to see if that helps. All my levels are normal and the temperature is 22C. From what I've heard corydoras are very active so I'm concerned something is wrong. Any advice would help.

Update: two of them died.

What should I name one of my albinos Corry cats

My Pygmy cories are just snacking on brown algae is that normal?There just little bits of the algae missing from the rocks,decor and glass.According to google yes I’m using it(don’t trust it with fish info)Pygmy cories don’t eat algae

Cory's are normally very healthy and active, and I did a recent water test and nothing was off at all(8 ph, 0 ammonia, 0 nitrites, 40 nitrates) and I come home today to see this guy in rough shape. Any clue what this could be?

Pic isn't amazing but he has some white marks around his back and his fins look worrisome.

My one cory got himself wedged between two rocks, luckily i noticed him in time and he didn’t die there, he’s hanging out by the bottom and has a scratch on his head, i immediately began treatment for bacterial infection to prevent anything. Is there anything else i can do? I will be making sure no rock is touching another to prevent this from happing again.

You can see his boo boo on his head

I have 11 Pygmy’s in a heavily planted 20 long with 5 endlers, 7 amano, and 1 mystery snail. The Pygmy’s haven’t ever had babies that I know of. Is it possible they are and I’m just not seeing the young and they’re getting eaten? Or are my fish just unhappy :(

Hello, one of my Cory’s is acting really strange. He’ll either sit on the wall of the tank like he’s a Pleco, or I’ll sit facing up in the water, or he’ll either sit on the floor of the tank, and won’t move for several minutes (which causes me to think he’s dead) or he’ll sit in the plants and do the same thing. The other one acts really sporadic and darts around the tank. I just really want what’s best for these fish, and maybe I shouldn’t have gotten them, and maybe I should’ve just stuck to guppy’s. But as for right now I just wanna know what’s wrong with my fish. Thank you.

Have a school of Pygmy corys that is 10 strong. They are in a 13L tank with 7 runny nose tetras and 3 danios. I feed algae wafers but the corys never see them and the other fish eat the food. I have had them for 2 weeks and they seem happy and healthy. Any suggestions on how to ensure they eat? Thanks.

I bought 7 and plan of get 3-4 more next week. They are so cute I wanna die

I've had my peppered corys for 2 years now. When I first got them they spawned constantly, even laying fertalized eggs a day or two after bringing them home. I upgraded their tank in August of this year from a 15 gallon cube to a 20 gallon long (I know they should have never been in a 15 gallon in the first place), the females laid unfertalized eggs shortly after and have laid nothing since. The water parameters and the temperature are the same. The only difference is that the new tank is not as densely planted.

My intent is not to breed but breeding fish are a sign of healthy happy fish so now that they're not even laying unfertalized eggs, I'm nervous I've done something wrong here. The females are HUGE but seem to have no intentions of laying.

If it's needed: 9 corydoras (4 of them are babies they had awhile ago in the 15gal) and 1 dwarf gourami Ammonia 0, nitrite 0, nitrate 10-20, ph 7.2, temp 78F

Any insight would be greatly appreciated!

So I am wondering if cory cats like caves! Any advise is helpful. I have a shipment of 6 different corys coming in and I want them happy so they will breed for me! Thanks in advance!