Pearlscale Butterfly FUNK!
So my Pearlscale Butterfly is a busy busy fish. He swims all over and is about the most active fish in my 155 gallon tank. I have had him (it) for about 4 weeks now and I am noticing a small area on his left side that looks like it has been rubbed raw. Hes not bleeding and its not really a horrible sight . It just looks like the scales in that area have been rubbed by something rough and the area appears slightly swollen. There is also a small area close to his tail that is the same way. It's left side is perfect.
Like I said, he swims in and out of the 140lbs of lace rock, playing with my Chromis (they are best friends and go EVERYWHERE together). I was thinking it was just from rubbing against the rocks. Sound possible?
He eats fine....plays....swims all over.....and doesn't at all act sick. I only have 4 small fish (Clown, BG Chromis, tiny black white damsel and the butterfly...he is the largest) and no invert's....yet. I have never seen them fight or compete for space. They all seem to get along well.
My water is changed religiously. I never let any ammonia build and I never let the Nitrates get above 5ppm. (with only 4 fish, this is pretty easy).
All other fish are really healthy and show no similar symptoms and are always quarantined before they get to enjoy their big house.
I have watched him for hours and have never seen him flashing. Im so confused.....
I would love to take a pic to post but he will not sit still....he's too busy!
Ideas?? Something to worry about??