White Spot on Tang

[elm0]

I picked up a Yellow Tang yesterday, my first Tang ever, he looked really healthy in the store, i dripped him for about 2 hours before introducing him to the tank, he looked fine yesterday, other than being shy and hiding everytime i walk up to the tank. This morning i turn on my light and notice a large oval shaped bright white spot on each side of his body, that i know wasn there yesterday, I've heard the issues with ich and tangs, and I've also heard about lateral line disease (not as farmiliar with that one) Now that the light has been on for about an hour the white spots seem to be fading, they arent nearly as noticeable...is this a natural color change for the fish, or should i be concerned?

[beareef19]

This is natural for the Yellow Tang, as the lights go off they turn a pale color and a white spot usually appears on thier sides. If the lights are turned on to quickly you will notice this spot .Have your lights come on in cycles so they do not startle the fish.
Barry

[blueboy]

that's the fact, i've seen the same thing. nothing to worry about

[elm0]

Thats a relief....just want to stay on top of any problems.
Thanks guys.

[ZooKeeper]

My yellow tang has it every morning until he gets the sleep out of his eyes.