Yello Tang

[mo-mo]

I notice at night time only my tang has a brown spot on each side of its body is this a camouflage thing or is he getting nitrate poisoning or something. My test results are not hazordous! Just curious! When the light comes on it goes away!

 

[dpittman]

Nothing to worry about - most tangs "camoflauge" themselves at night.

 

[jagermeister]

My yellow tang does the exact same thing.

 

[holacanthus]

Yeah it's just night time coloration, it shold clear up after the lights have been on for a while!