Naso Tang turning dark

[SPotter]

I have a 4-5" Naso Tang thats been in my tank for 6+ months now. Within the last week his colors have gotten dark but was still eating like a pig until tonight. Wont even go near the food I put in the tank. I did recently change the aquascape in the tank and thought he was a little stressed by that but now he's not eating. Thoughts or suggestions?

 

[Mpfaff77]

Not sure if dark color is sign if sickness. But mine darkens when he gets spooked. After lights out too he darkens up. I have even seen spiratic white spots on him when spooked. My guy is very skid dish. I'd say at least few times a week I see him dark. But spots less often.


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[SPotter]

anybody else have any thoughts on this one? color is coming back but still not eating.