Sterbia Cory

[rita1]

hello
 
i have 4 sterbia corys and 3 are best mates always together but one is always on his own.
i have had them for a month now, they are all eating, but was wondering what could be wrong with the loner.

 

[N0body Of The Goat]

It might be ill, but it might be simply down to having too few Corydoras sterbai.
 
I started with 12 a few years back, sadly two developed a milky fungal/bacterial infection and did not recover, but the other 10 tended to hand out together. When I then mixed them with 11 Brochis spendens, they became far more confident and it was great to see them "flock" across the floor of the Rio240... I do regret rehoming them all, but at the time I had far less tanks I suddenly became aware that I had too many fish long term and too many of them were species that stayed at or near the tank floor. 

 

[rita1]

It might be ill, but it might be simply down to having too few Corydoras sterbai.
 
I started with 12 a few years back, sadly two developed a milky fungal/bacterial infection and did not recover, but the other 10 tended to hand out together. When I then mixed them with 11 Brochis spendens, they became far more confident and it was great to see them "flock" across the floor of the Rio240... I do regret rehoming them all, but at the time I had far less tanks I suddenly became aware that I had too many fish long term and too many of them were species that stayed at or near the tank floor. 

thank you for you advice, my tank is only 46L so i really can't have any more or i would be over stocked, with 5 guppies.

 

[N0body Of The Goat]

 

It might be ill, but it might be simply down to having too few Corydoras sterbai.
 
I started with 12 a few years back, sadly two developed a milky fungal/bacterial infection and did not recover, but the other 10 tended to hand out together. When I then mixed them with 11 Brochis spendens, they became far more confident and it was great to see them "flock" across the floor of the Rio240... I do regret rehoming them all, but at the time I had far less tanks I suddenly became aware that I had too many fish long term and too many of them were species that stayed at or near the tank floor. 

thank you for you advice, my tank is only 46L so i really can't have any more or i would be over stocked, with 5 guppies

5 Guppies can live in that tank for live without issue (unless you get a population explosion ), but Corydoras sterbai need something much bigger for life, with a footprint (base) of at least 80x40cm or 90x30cm. Adult C. sterbai are quite chunky catfish as adults and they should be kept in social numbers.