The marks on the fish are HLLE
, the fish is in about the mid point of the erosion, it begins around the eyes and then works it's way along the lateral line. There are a few things that are thought
to cause this...
- poor water conditions
- stray electrical charge (use a grounding probe)
- poor diet
Not too much is known about this disease/condition, and most of the info about it is speculation. If it were me, I would try to take the fisah back, if they won't take it back, make sure you have a grounding probe, you keep up with your water changes, feed plenty of food soaked
in a vitamin heavy in fatty acids and lippids and HUFAs like Selcon
. I have seen tangs recover from this when the Selcon type food soak was used, but I have also seen it fail.