Hey all - I've attached a photo that very vaguely depicts my big maroon's affliction. However, since I'm guessing you won't be helped by the picture alone, I'll describe:
It seems that she has a patch of greyish, mucousy skin just forward of her dorsal fin, with a little of the patch extending backwards onto the left side of the front dorsal. Additionally, there's a small patch at the tip of her right gill cover.
After a recent routine water test by my LFS
, I've concluded that water quality is not an issue, but she's recently been moved from a connected tank into the one where I took the photo. (She had been observably stressed in the former tank.)
I'd normally suspect Brooklynella, but her mate shows no signs of discoloration or distress - I'll admit naievety on this assumption.
As for behavior: completely normal - she's going through the typical cleaning behaviors that I've been told are associated with breeding, is feeding regularly, and has resumed her distaste for my hand when I clean the glass.
Any suggestions on what the cause of this patch might be, and potential fixes?