Fish's Mouth is gone

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glencch

Exodon
MFK Member
Dec 21, 2021
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Hi everyone,

Just out of curiosity, I noticed one of my congo tetras is having such condition. His mouth seems to have disappeared.
Other fishes are fine.

I have since quarantined him in an isolation tank.
He seems to be doing fine.

Anyone has any idea what might have happened to his mouth?

IMG20220109123426.jpg

IMG20220109123424.jpg
 
glencch said:
Hi everyone,

Just out of curiosity, I noticed one of my congo tetras is having such condition. His mouth seems to have disappeared.
Other fishes are fine.

I have since quarantined him in an isolation tank.
He seems to be doing fine.

Anyone has any idea what might have happened to his mouth?

View attachment 1484354

View attachment 1484355
Click to expand...
Fins look a bit torn. Check water parameters. Could it be possible another fish ripped the mouth off. With some cichlids I know they can lip lock and damage their mouths but I don’t think tetras show this kind of behavior so I’m not sure.
 
Rtc/tsn said:
Fins look a bit torn. Check water parameters. Could it be possible another fish ripped the mouth off. With some cichlids I know they can lip lock and damage their mouths but I don’t think tetras show this kind of behavior so I’m not sure.
Click to expand...

PH is 6.6, Ammonia is 0.02ppm
Temperature is 30.2deg C

Tank mates are as:
Yamato Shrimps, Assorted Guppies, Mollies, Siamese Algae Eaters, Otocinclus, BN Plecos, Cardinal Tetras, Danios, and other congo tetras
 
Stephen St.Clair said:
IMO, it's likely the pictured Congo Tetra survived a bout of Mouth Rot, a bacterial infection.
The bacteria destroys mouth tissue. It will not regenerate.
The Congo Tetra's ability to eat will be impaired, but he should be able to survive.
Click to expand...
Is there any way to prevent it or to cure it?
 
Prevention is always the best medicine. Selecting healthy fish, providing a healthy environment & quality nutrition goes a long way towards nullifying disease.
Even so, occasionally disease will occur.
Curing bacterial infections is difficult and in some cases nearly impossible. There are plenty of commercial antibiotics available, although some countries are banning them.
I doubt your situation is a contagious one. At this point the Congo Tetra does not need to be medicated.
 
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Why your temperature is so high?
None of your fish needs 30 C.
The mollys are the only one who prefer it a bit warmer water around 26-28 C. All the other will do way better at lower temperatures. 23-24 C is enough for them and will increase their live spawn a lot.
 
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Stephen St.Clair said:
Prevention is always the best medicine. Selecting healthy fish, providing a healthy environment & quality nutrition goes a long way towards nullifying disease.
Even so, occasionally disease will occur.
Curing bacterial infections is difficult and in some cases nearly impossible. There are plenty of commercial antibiotics available, although some countries are banning them.
I doubt your situation is a contagious one. At this point the Congo Tetra does not need to be medicated.
Click to expand...
Thanks
 
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Milingu said:
Why your temperature is so high?
None of your fish needs 30 C.
The mollys are the only one who prefer it a bit warmer water around 26-28 C. All the other will do way better at lower temperatures. 23-24 C is enough for them and will increase their live spawn a lot.
Click to expand...
Honestly, I have no idea why the temperature is very high. I have been trying to bring it down but it wouldn't work.
The tank is currently outdoor. I do not have a light over it. All the tank has is a canister filter, hob filter and a UV sterilizer for algae bloom prevention.

I tried putting the tank indoors but the temperature went up to 32.8deg C

Should I be using a water chiller system?
 
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