SKremk
Member
I'm not sure if my tang is actually sick or not, but the last few days the right side of its face has been constantly dark. The tang lightens and darkens normally during the course of the day, like when it's eating, but recently its face has just stayed dark. Is this normal? I've had this fish over a year, and I've never seen this before. The rest of the fish and everything else in the tank seem to be fine.
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