Sick Green Chromis

[otherunderbrink]

Not sure what is up with it but it seems to be shrinking. We have 2 others that we received at the same time and they look great. This one just looks sickly. It acts normal, just like the other two, it eats fine and is just as active as its buddies. Any ideas? Should I remove it? We don't have a QT so removing it would mean a new home in the porcelain whirlpool aquarium...

 

[mr. limpid]

It is probably being picked on by the other two, chromis are part of the damsel family and spite what everyone thinks these are not good schooling fish. I thought so also when I tried keeping 18 of them together, within a year they weeded each other out till there was one, he died also.