These answers are not fit to the fish,meaning you dont grade a FH by saying 5 or 6 or 9.....They use letters,Ato ZZ,but i don't know the logistics of the grading........If an Experienced Flowerhorn owner could please write or paste a nice grading chart and/or variety/strain chart,it would be ever appreciated,maybe even made a sticky,so as to grade a new FH Quickly.........