These big fatso's have been around my tank for about 4 years. I think maybe he's imitating me
Maybe if I shave the perc will revert to normal coloration.
I'm not too worried since this has been observed for at least 5 months now. I was just curious about the cause of the darkeneing color change. I agree with the sex-change or maturation influence.
Thanks Alot for the much appreciated notes guys
kari