Hi they are quite unseasy to tell apart, one thing is to look at the mouth form and at the inferior jaw lenght(being a little bit longer in the kyoga one than in the other) the slope of the head is a little bit more rounded in the flameback, the medium longitudinal bar seems to be more linear in the kyoga, mostly yu'll see 3 blotches that form that bar in the flameback. the pelvic fins exhibit a little white color on the first ray of the kyoga that lacks in the flameback. those are very subtles differences and i wish you to success but it's more than uneasy
xris
