Go Back   Aquarium Advice - Aquarium Forum Community > Freshwater > Freshwater & Brackish - Unhealthy Fish
Click Here to Login

Join Aquarium Advice Today
Reply
 
Thread Tools Search this Thread Display Modes
Please support our sponsors and let them know you heard about them on AquariumAdvice.com
 
Old 04-12-2013, 12:13 AM   #1
Aquarium Advice FINatic
 
bloodlucky's Avatar
 
Join Date: Jul 2012
Posts: 900
Mystery killer of corydoras

So in my 40 gallon I have a ram, 7 danios, 6 neons, and a few platys. I had many corydoras, probably 7-8 over the course of time, all have died in the end. The last one is in my 10 gallon breeder/hospital, spending its last night on earth. I feel like a total failure as this last corydora had been fighting his death for nearly a week now and just as I thought he was getting better, about 15 minutes ago I see him nearly upside down, breathing heavily with a red belly and eyes bulging out. I will let him pass overnight.

I want to know what I'm doing wrong. My parameters are fine, I've been keeping water changes consistent and effective, I've been feeding sinking foods several times a week. It couldn't have been a bad delivery at Petco since I bought them all at different time periods. None of my fish would ever bully them.

Please help
__________________

__________________
bloodlucky is offline   Reply With Quote
Old 04-12-2013, 07:09 AM   #2
Aquarium Advice Addict
 
bkiggy's Avatar
 
Join Date: Aug 2012
Location: Massachusettes
Posts: 1,301
I keep and breed Corys. I have 10 different species. I'm going to ask normal questions- API master test kit??
Ammonia
PH
nitrite
nitrate
are you using salt
KH
tank size
species of Cory?
- using an air stone
CO2 for plants?

- I have a couple theory's but need details
Respiratory distress is indicative if 1.Ammonia 2.CO2 high 3.high temperature = no oxygen
__________________

__________________
bkiggy is offline   Reply With Quote
Old 04-12-2013, 08:09 AM   #3
Aquarium Advice FINatic
 
bloodlucky's Avatar
 
Join Date: Jul 2012
Posts: 900
Have test kit for ammonia/nitrite, not one for nitrate
__________________
bloodlucky is offline   Reply With Quote
Old 04-12-2013, 08:10 AM   #4
Aquarium Advice FINatic
 
bloodlucky's Avatar
 
Join Date: Jul 2012
Posts: 900
I am not using salt, I have a 40 gallon tank and I do use CO2
__________________
bloodlucky is offline   Reply With Quote
Old 04-12-2013, 08:13 AM   #5
Aquarium Advice Addict
 
bkiggy's Avatar
 
Join Date: Aug 2012
Location: Massachusettes
Posts: 1,301
I have plants and no CO2. My advise is check CO2 level. It's very uncommon, but you can suffocate your fish. Do you have a bubble counter?
__________________
bkiggy is offline   Reply With Quote
Old 04-12-2013, 08:14 AM   #6
Aquarium Advice FINatic
 
bloodlucky's Avatar
 
Join Date: Jul 2012
Posts: 900
I don't use salt my tank is 40 gallons and I use CO2
__________________
bloodlucky is offline   Reply With Quote
Old 04-12-2013, 08:15 AM   #7
Aquarium Advice Addict
 
bshenanagins's Avatar
 
Join Date: Feb 2013
Posts: 1,583
Quote:
Originally Posted by Bobjoefredsky View Post
I am not using salt, I have a 40 gallon tank and I do use CO2
How often do you do WC? And you should get a nitrate test. I can't see it being Co2 as the other fish would have met similiar fates.
__________________
bshenanagins is offline   Reply With Quote
Old 04-12-2013, 08:32 AM   #8
Aquarium Advice Addict
 
bkiggy's Avatar
 
Join Date: Aug 2012
Location: Massachusettes
Posts: 1,301
Quote:
Originally Posted by bshenanagins View Post

How often do you do WC? And you should get a nitrate test. I can't see it being Co2 as the other fish would have met similiar fates.
True. High nitrAtes can be harmfull but not fatal. I've had as high as 80+/-ppm and they were fine. NitrIte poisoning causes Brown Blood. High ammonia can burn lungs and skin. i did fish in cycle and had no deaths. even with corys. Gravel Vac very well with water changes, or stir up sand. Which ever you use. Anaerobic bac can form pockets can lead to problems. They are clearly being poisoned, and under respiratory distress. They are on the bottom and that is less O2 than top. Susceptible to more stuff. I gravel vac and do 40% WC every week
__________________
bkiggy is offline   Reply With Quote
Old 04-13-2013, 01:45 AM   #9
Aquarium Advice FINatic
 
bloodlucky's Avatar
 
Join Date: Jul 2012
Posts: 900
Like 2 20% every week, then a nice 40% on weekends. Clean out a lot of dirt from the gravel every time which is a good thing. Just don't understand why only the cories bit the dust
__________________

__________________
bloodlucky is offline   Reply With Quote
Reply

Tags
cory, corydora, corydoras

Please support our sponsors and let them know you heard about them on AquariumAdvice.com

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off








» Photo Contest Winners







All times are GMT -4. The time now is 02:55 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
×