One of my clowns (Amphiprion ocellaris) has always been a little darker in color than the other. It has more black which I think is normal. However, over the past 6 months it seems that it's black areas have grown, and seems a little more ragged looking. It also has a black spot on it's other side that is about 1/8 of an inch. It's been on his side forever. The clown acts very normal with no indications of illness. Tank parameters are stable for stony corals.
Salinity at 35 (or 1.026),
nitrates below 0.5,
phosphates below 0.024,
alk at 10.8,
ph at 8.2, etc.
What do you think?
Ralph
