I have an 8" Alligator Snapper that I've had since it was a hatchling. Over the past month or so, he's developed a condition that is causing the skin to turn greyish/white in color. It appears to be some sort of infection. He's eating just fine. I have him in a 30 gallon tank

I would really appreciate any help as to what the condition is and more importantly, how to cure it.

Thanks in advance for your help.

JKoontz