Corydoras inactive

[13-186]

hi, all,

have been having of different kinds for few weeks, but until recently, found that one of them looks very inactive.
while others busy looking around, this guys just stay there, when came across by the others, it just swim away and even resting on top of my nana.
can expert pls advise what actually happens and any medicine should i use?
btw, sometimes feel that cory looks ok in the morning but dead by the afternoon. whole body looks perfectly normal and the tank condition is ok with a few other shrimps, tetra....
is this normal in cory keeping?

[JT]

If its one...its generally ok...(BUT be careful, it may be a sign for the rest to follow). I experience it myself. Few possibilities.
1. Poor oxygen composition in the water
2. Temp not ideal (hot)
3. Some fishes chasing them
4. Disease (depends - cant judge like this...need to have a look)
5. No food to eat(likely to be this)

6. Owner never play with them... haha

[13-186]

thanks for the input,

the rest of the cories gang still as normal, what i worry is disease possibility..... that's the most headache, no idea what medicine to use....

and if contagious lagi jiak lat...
need to monitor and see...

[benny]

You probably need to give more details for a better dianogsis of the condition.

Information such as tank size, type of tank (planted or otherwise), CO2 fertilization (if any), bioload, water change regime, age of cory and how long you have had the cory would help amongst others. Otherwise, it's just a shot in the dark.

There's a good chance that the particular may be suffering from internal bacterial infection. Try to describle the physical characteristics if you can. E.g. Sunken eyes? Sunken Belly? Ragged fins? Protruding scutes? etc, etc.

For a start, try to ensure the water is well oxygenated as suggested. Also keep up the water change to ensure that the water is clean. Keep your bioload low or isolate the cory for further treatment if necessary.

Cheers,

[clothahump]

Any sign of red patches in the belly area or just behind the Pectorals?

[13-186]

after the inactive symptom, some fin and tail was torn and a milky layer could be observed on the whole body. Wonder whether was it fin rot or harrassed by my shrimps....
after separated into hospital tank with original tank water, with air bubble and added some medication for fin rot.
after a few hours......