Are there any other tankmates with him.....
yes, I forgot a polypterus ornatipinis 10 inches and I made a mistake, there is no red terror
Yes, the peacock is dominated, but in my experienced of american cichlids, he is not often confront. So, if I understand, this is enough for him to be stressed and not eat so often
but, if he grow enough and be very large, is it going to be better?