discolouring pb?

[Escher]

Hi folk

I have a large PB which I thinks is faiding slightly around the abdomen. Beside colour enhancing food (it eats coulr bits no problem) what affects its colour? can it be a sign of some desease/illness? It looks ok and maybe I am paranoid, but I have just lost a bunch of juvies that looked OK, if you know what I mean.
Thanks :)
Gianluca

[flukes]

Because PB's dont show stress bars, i have noticed changes in color when sick. Might be just something small or could be the start of something big.

Either way try a bit of salt and alot of water changes.