Blue tang started looking weird!???

[Ana Zaragoza]

Hey guys so i have two blue tangs in my 250g tank one is noticeably bigger than the other, but with time I’m noticing that the smaller one has some black spots on the right side of its body.. he’s looking good, eating normally and not doing any weird behavior.. could this just be the coloration that he’s getting or is it something else?

 

[Big G]

Sometimes tangs will get marks from wedging themselves into safe places in the rocks at night. Has anyone been harassing the smaller tang?

 

[Ana Zaragoza]

Sometimes tangs will get marks from wedging themselves into safe places in the rocks at night. Has anyone been harassing the smaller tang?

Not that I’ve noticed