That is the tangs "stress bar". When they are freaked out, that white bar comes out. On mine, it comes out everytime the tank lights go off.
On naso tangs, they get stress dots. White dots appear all over their body.
It is a good indicator if your tang is not very happy right now. That bar will come and go.
It is not a problem except to let you know it is stressed. Just monitor it for ich.
On naso tangs, they get stress dots. White dots appear all over their body.
It is a good indicator if your tang is not very happy right now. That bar will come and go.
It is not a problem except to let you know it is stressed. Just monitor it for ich.