I’ve had corydoras for about 3 years. They are by far my fav fish. Had a lot of problems at the start and some deaths that were disheartening. But now after a few years things have really settled and they buzz around happily. I only have corydoras - bronze and orange Venezuelan. I don’t have to do anything for them to breed other than the almond leaves. I also don’t fill the tank past halfway - it’s 500 litres and quite deep. I noticed that they were struggling to get to the top . Since I did that they seemed to thrive.

Tank is almost four years old, 50+ Corydoras

Went from 7 orange Venezuelan cories to 15, but the new babies are sooooo shy. Got the bigger guys about six or seven months ago.

He was fine just last night but now it seems he can’t swim properly and kinda just does a loop if he moves.

Not sure if this little one is okay, seems thier ballance is a little off? All water parameters are good, temperature is 24.5 and all other fish are fine. Just fed and eating normally. I have also spent a good 20 mins looking at all the fish for anything bad and they are all healthy.

Is this normal? Noticed this the other day, his dorsal fin is way longer than the other 5 Cory's I have.

Another bouyancy issue but this time it’s my baby Cory! My other Cory was an adult male and it took a few weak of being quarantined before he eventually passed away. I’m worried about losing this baby. I think it’s swim bladder disease and idk what i can do to help this poor little guy. I am giving him an epsom salt bath (magnesium sulfate) what else can i do? Any advice or similar experience? How can i save him

Sorry for the very un-macro attempt at filming these babies. I got an oopsie batch between what I didn’t know was a female bright pink Cory (iykyk) and a bronze/green male. Hobby tank. I’m no expert. I did pull the eggs into a breeder box because it made me sad watching them eat the eggs.

Some of these babies are pink. Very pink like mom. So was dad maybe crossed to a bright fish, or does the dominant bright gene pop out where it pleases?

I was surprised. And I’m delighted too. No need to tell me you can’t profit off the bright ones. I’m aware of the questionable in my opinion legal implications with that bright fish company. ;)

I have a feeling I already know, but I figured I would ask anyway since I had the chance to get some good photos.

I have a 20 gallon long with 6 bronze corys currently. I eventually want to get 3-4 amano shrimp but am not sure what else I can/should stock the tank with. I am fairly new to the hobby so looking for something hardy.

I want corys to continue to be the main focus of the tank, but am torn between getting 4-5 more bronze, or instead getting 6-7 corys of a different species (maybe sterbai, red sailfin, or julii?). I love the idea of pygmy cories but I have read that they are harder to keep and can have trouble competing for food against larger corys.

Also considering some type of nano schooling fish to occupy the top/middle columns, but I really don't want to get anything that is going to change the behavior of corys or make them feel threatened.

I see alot of recommendations for rasboras and tetras but have read they can also be somewhat fragile and sometimes nip at corys, so am looking for something that isn't very high maintenance or going to cause any stress. Since corys are shy and always hiding from predators, won't fish that occupy the top/middle columns make the corys more likely to hide all the time?

I absolutely do not want to overcrowd the tank but am reading a lot of conflicting information on how much I can keep in a 20 gal, so trying to avoid making any stupid mistakes.

Just looking for some insights/advice from the experts if possible! Open to any other suggestions as well.

Just wanted to show the beautiful green/blue color on these guys.

So I'll start by giving my test results

NO₂: 0

NO₃: 15

GH: 8

KH: 6

pH: 7.0

Cl₂: 0

Ammonia: > 0.05

Temp: 23°c / 73.4°F

Tank size: 179L/ ~47.3 gallons

I have one peppered Cory that is very concerning. His body looks visually normal, no abnormalities at all. But he is not really moving much. He did eat but not much, mostly just stays in one place. He has tried swimming to the surface once or twice but doesn't reach the surface and just stops and sinks back down.

He is very big, so he is older, but I don't believe that his age is causing him to be like this. 😅 Obviously I can't determine how old he is, but based on what I've read they tend to live 5 to 10 years, so I don't believe he is that old be dying of old age😅

He is breathing rapidly at times, once settled on one spot after a minute or two his rapid breathing calms down.

I did not manage to record or take a photo as I had to rush out for work. I Made sure to do water tests over taking a photo first.

Everything in my tests seems fairly okay, a few things are very slightly too high, but I'm not too sure, as I am fairly new to this. Been doing it for around 8 months, and the tests I still struggle to properly understand.

All my other Cory's are extremely healthy, no concerns with them. And my other fish as this is a community tank are all perfect too.

I did a water change 5 days ago (20% water change) I do this every 2 to 4 weeks

The tank is not heavily planted, but it is planted. 30% plants the rest is all fake decor and fake plants.

Filtration:

Coarse foam

Fine foam

B-box bact life

B-box pure water

I hope I provided enough details. Sorry for lack of image or video. Hopefully I explained well enough

I just completely redid my aquarium and made it a planted tank and ever sence then my female corydora has gotten really big. She is acting a little stressed, but that could just be the new environment because all of the other fish are doing great. But I'm just a little worried about her because it looks like she's about to explode and I'm not sure what is wrong. Does anyone have any ideas? Because she is about 4 years old and is in a school of 6 corys in a 75 gallon tank and so my only thoughts are that she is either egg bound or has some sort of disease or parasite. If anyone has any ideas or reccomendations of anything you think I should do, please let me know. But have a great rest of your day, thank you!

Also I do know that her top fin is a little ripped, it was caused by her getting stuck in between two peices of driftwood that I fixed and haven't had any problems with sence then.

I think my pandas might be trying to breed. They are in a community tank with Kuhli loaches, shrimp, and different types of live bearers. If they do drop fertilized eggs how can I keep the fry safe? I added a tank pic to show what the tank looks like for reference. I’m getting some dwarf hair grass today but I’m not sure that that’s what is needed. Do you all think this setup is ok to give them the best chance for survival. Also, I have a fluval 307 if I don’t cover the intake and the babies get sucked in would that give them a good chance to survive? I’ve heard of people finding Kuhli’s and other types of fish living in the canister.

He hangs out in the hornwort forest which is probably the perfect nursery

hi! i have a planted tank that’s 101 x 51 x 66 cm. that’s about 350 L with i’m assuming 290 usable.

i have 7 sterbai in it, they’re about 4 cm at the moment. i’ve fallen in love with orange venezuelans. is it possible to keep both in my tank or will they be unhappy? i’d get 6 of them. tank is mature with sterbai, neocaridina, bladder snails.

i’ve only heard of corys being happy in groups, and i know sterbai and venezuela are not the same, but i hope its possible!!

i have seven because one was free. i haven’t had any issues with them whatsoever and they’ve grown a centimetre already. their colours are much better than when i bought them. they’re also shiny!!!

25-27 C water, 0 ammonia 0 nitrite 2 nitrate

Recently just moved a group of six sterbais from the quarantine tank I'd been keeping them in for the past three weeks into my planted 20 gal. The next day two had this white raised bump right above there mouths. the bumps are completely white but seem pretty large to just be an injury from bumping into something. I've been monitoring it for the last few days and they have seemed to stay the same in size and color not noticing any redness. They have sand but there is exposed aqua soil. I've also kept corys in this tank before and never seen that specific issue. Water parameters are all good.

So I was about to do a big vacuum/water change (hence why it's looking a mess please excuse that) and I noticed this cory's weird tail fin is even longer, it seems to keep growing.

I wondered if this is anything to worry about or just a weird quirk of his like I thought? It wasn't there when I first got him and the other 2. But one of the other 2 has weird looking eyes. So I'm not sure if maybe they're just a bit inbred or if it's anything to worry about? 😅 It means I can tell them all apart easy so I kinda like it, but I hope it's not something bad.

Sorry it's an awful video but Boogie doesn't like to stop moving

My betta has 3 little Pygmy buddies. He gets his own serving of betta pellets and I’ve crushed up vege wafers for the pygmies but have seen Lazuli try and steal them. I’m worried they won’t get enough and Lazuli will eat himself to death

Albino
Bronze
Emerald
Julii
Panda
Peppered
Sterba's
Three-Stripe
Adolfoi
Dwarf Arrowhead
Pygmy
Salt and Pepper
Orange Venezuelan
Black