I will try and post a picture soon (my neighbour has borrowed my camera
).
Actually this fish has quite a bit of black and yellow as well as white. I don't see anything such as what you described as flukes. I've had the fish about a month now.
I think he's starting to feel better. And he is starting to at least try the food I give (he spits it out again), so that gives me hope! He still prefers the aptisia though. He's eating those like there's no tomorrow. Fortunately I have a good supply of those!