I noticed that this fowleri tang has a strange black dotty pattern right under and next to ts mouth. It eats very well and seems to swim just fine. Any suggestions or ideaswould be great help
This is an image under white light. Right on the right side and under neath the mouth is where the anomaly is. Otherwise the fish looks great and healthy
It looks like it spread a little more to the side of its mouth last night. However, it is only concentrated around its mouth so I think that it may be a bacterial infection but before I do anything some advice will be great. For reference, the fish's mouth looks like it was dipped in dark grey or black ash.