My flowerhorn is starting to get like on the rim of his body a gold/yellowish dark color theres nothing wrong with him though hes perfectly ok I was just wondering is this normal or?? hes not stressed out no black marks happy as can be is there anything you guys know about this I dont have a good enough camera to get the pictures of him but i have a diferent thread where i got some pictures of him he just starting getting this maybe like a week ago