Disease?

[RoyalGrammaPrincessHannah]

After observing my yellow watchman goby, I have noticed that around his stomach and all around to his back is turning white. He is already being treated for ich with buffered active copper so it cant be something that would be killed by copper. I havent been able to find anything that sounds like this and he is acting normal too so does anyone have any idea what this might be?

 

[Lynden]

Maybe he is simply maturing? Colour change can signal a variety of conditions, not all of which are malevolent. How big/old is he?

 

[RoyalGrammaPrincessHannah]

Maybe he is simply maturing? Colour change can signal a variety of conditions, not all of which are malevolent. How big/old is he?

Um i dont know how old he is but he isnt the full 3 inches they get up to, about 2 inches. I dont know why he would be turning white though, hes a yellow watchman and ive never seen any pictures with them having white on them.