Noticed My New Panda Cory's In Quarantine Have Fuzzy Stuff In Their Tails Are Missing

I watch my tanks every day multiple times a day and I don't know how I missed this. One of my panda Cory's and quarantine is missing almost its whole tail and has white fuzzy stuff on its tail and fins and is laying on its side. There's another one that's not doing so good and all the other ones are active but I could see a little bit on their fins. I'm still really new so I'm not good with fish diseases so I assume it's fin rot? And I did a large water change and put kanaplex in the tank. Could it be something else? Is there anything else I need to do or look for? How does this happen so fast!?

 

Sounds like a fungal infection that would have been caused by the fin loss. I'm not too versed on how to treat diseases, so I'll pass the torch, but hopefully this will give you some googling material.

 

can you get a photo?

 

Sounds like a secondary infection from fin rot. What are your water parameters? What size is the tank and how many other corydoras are there? What's the temperature? How long have they been in quarantine?

I would perform daily 50% water changes with the addition of Seachem Prime and Seachem Stress Guard. Something like API Fungus Cure or API Furan-2 will help, although Kanaplex may be better.

 

I can get a pic later when I get back home. Is kanaplex ok or should I get something from petsmart on the way home?
I really think one is not two aren't gonna make it.
I've had them one week.

 

I can get a pic later when I get back home. Is kanaplex ok or should I get something from petsmart on the way home?
I really think one is not two aren't gonna make it.
I've had them one week.

Just try kanaplex for now. I'm sure it will help. Can you answer the other questions?

 

Just try kanaplex for now. I'm sure it will help. Can you answer the other questions?

Yes sorry.
I tested ammonia before I did water change it was zero. I didn't test the other two.
It's a 10 gal. Temp is set at 75 F.

Sounds like a secondary infection from fin rot. What are your water parameters? What size is the tank and how many other corydoras are there? What's the temperature? How long have they been in quarantine?

I would perform daily 50% water changes with the addition of Seachem Prime and Seachem Stress Guard. Something like API Fungus Cure or API Furan-2 will help, although Kanaplex may be better.

Yes sorry.
I tested ammonia before I did water change it was zero. I didn't test the other two.
It's a 10 gal. Temp is set at 75 F.

I have 6 cories.

 

Yes sorry.
I tested ammonia before I did water change it was zero. I didn't test the other two.
It's a 10 gal. Temp is set at 75 F.

You may want to test for nitrites.

 

Alright the best method of treating fin rot is simply water changes everyday and adding salt. I purchased a Oscar and he had fin rot and I did this for astraight week and he healed completely and now is 6 inches and loving life. Fin rot is mainly caused by poor water conditions and typically all you need is salt and water changes

 

Huh. My parameters have been good except for just 2 days after I added them the ammonia got up to .25ppm and then zero since then. I check daily.

Alright the best method of treating fin rot is simply water changes everyday and adding salt. I purchased a Oscar and he had fin rot and I did this for astraight week and he healed completely and now is 6 inches and loving life. Fin rot is mainly caused by poor water conditions and typically all you need is salt and water changes

I don't think I can add salt with cories

Came home to a dead fish.
The second pic is of the other one not looking well.
The last pic is of my healthier looking cories.
All my bigger ones look almost perfect and the small ones are rotting away before my eyes!




I might have figured out what happened. I do weekly water changes but I added a bunch of tts+ when I added the cories.
I should have been checking nitrates but I was only checking ammonia.
After my 50% PWC earlier I'm reading almost 40ppm nitrates which means it was close 80ppm. I know cories are sensitive to water quality and I feel horrible.

 

I might have figured out what happened. I do weekly water changes but I added a bunch of tts+ when I added the cories.
I should have been checking nitrates but I was only checking ammonia.
After my 50% PWC earlier I'm reading almost 40ppm nitrates which means it was close 80ppm. I know cories are sensitive to water quality and I feel horrible.

Don’t worry, love. We all make mistakes. Just continue to learn from them Those corydoras are in pretty bad shape.. Hopefully they’ll make it.

 

Sorry for your loss.

Sadly from what I understand, panda cories are some of the most sensitive of cories.

 

Update. 3 of my cories are still looking strong. One is iffy but better looking than the two deceased were.
I've done other PWC today and added back the appropriate amount of meds.

I want to make sure I'm doing what I should be. I'm changing 50% daily and adding back the meds taken out with the water.
Is there anything else I should be doing?

 

What are your dosing instructions for your meds? Do the say you can perform water changes. Many meds say treat for a certain amount of days, then perform a water change. If your meds say anything about not performing water changes for a certain amount of time, I would hold off on the water changes (unless your nitrates are not in check yet).

 

What are your dosing instructions for your meds? Do the say you can perform water changes. Many meds say treat for a certain amount of days, then perform a water change. If your meds say anything about not performing water changes for a certain amount of time, I would hold off on the water changes (unless your nitrates are not in check yet).

I've read on their forum that if a water change is performed to replace the meds appropriately. I was under the impression that with fin rot, daily water changes works best.