dark areas on goby

[jeffisme]

hi,

maybe it's my imagination but I've suddenly noticed these dark areas on my shrimp goby since I put it in the QT a week ago. in the first shot, the lighting is dark and the closeup is under a brighter light.

is that normal coloration? If not, any ideas on a possible cause?

thanks for any info,

jeff

 

[MrTuskfish]

Looks like possible internal bleeding; but if the fish is eating and swimming normally; you can rule that out.