Help my Blue Tang lost most of it's color

[jeromefong]

My Blue Tang which I have had for almost 2 years suddenly lost it color. Eventhough I can still see where his blue and black color was, his pigmentation is extremely light. It is almost like he is powder blue. I checked all my water parameters and they are all within their normal limits. I haven't changed anything in the tank recently. The only recent change has been my feeding live phytoplakton that I purchased from a local reefer. But, I haven't used the phytoplankton in a couple of days.

Any ideas what or where I should look?

thanks,

Jerome

 

[TerryB]

Start with a large water change using well aged and aerated saltwater.

Terry B