Cory Seems Lethargic And Listing Over

[scubadoo]

One of my cory's is looking a bit iffy & wondered if anyone had any insight.

Its generally just sitting on the bottom and having alittle difficulty keeping stable. Its not as active as it should be and slowly lists over up to a certain point then with a little wiggle manages to get upright again. Also seems to be experiencing a loss of appetite and the area immediatel under the gills seems slightly pinker than normal - only slightly mind. When it swims it looks ok, but its just too still as it sits on the bottom.

Stats
Tank size: 190l
pH:7.6-7.8
ammonia:0
nitrite:0
nitrate:5-10
tank temp:25 deg C

Volume and Frequency of water changes: 25% weekly

Chemical Additives or Media in your tank: none other than aqua safe

Tank inhabitants: Copper rasbora's, Neons, Danio's, Serpae Tetra, Other cory's and amano shrimp

Recent additions to your tank (living or decoration):none

Any help appreciated

 

[WILDER]

I would use a bacterial med cory are prone to bacerial infections.
Some shelled peas aswell.
Good luck.

 

[scubadoo]

Will try some melafix in the first instance - thanks Wilder.

 

[WILDER]

How is the fish as melafix is only good on cuts and wounds, meant an internal bacteria med.,