Stressed Cardinals

[Mendozasreef]

Hi, I have 3 Bangai Cardinals, One of them seems to be king, the other two hide in the upper corners.. today and yesterday i've noticed one not coming out to eat.. I think he's under my reef somewhere! Not much I can do about it but what my question is.... Will one of them dying poison the tank.. or will the CUC eat him ??

 

[mike61289]

CUC will clean it up.

Banggai cardinals don't do well in groups. They're best kept as a pair unless you have a huge tank. Usually two will pair off in a group and kill the third and the rest.

 

[iced98lx]

Hi, I have 3 Bangai Cardinals, One of them seems to be king, the other two hide in the upper corners.. today and yesterday i've noticed one not coming out to eat.. I think he's under my reef somewhere! Not much I can do about it but what my question is.... Will one of them dying poison the tank.. or will the CUC eat him ??

If a body shows make sure and pull it, but depending tank size and maturity the CUC will take care of the body. You may see a rise in nitrates as the breakdown process will create a bit so do watch.

As already stated, this species often whittles down to either a pair if opposite sexes are in the group or a single if they are all the same sex, as you've discovered.