I would actually lean more towards this being an Xystichromis Phytophagus (christmas fulu) or an Xytichromis "Dayglow" the color doesn't look right to me to be a kyoga flameback. One way to tell more is the fulu will have bluish lips and face. If it doesn't have the blue on its face then I would say Xystichromis "Dayglow"