These are the fishes that I kept before from juv to Adult colour, French, Grey, Queen, Townsend, Emperor.
French and grey grow damn fast given the right condition. Mine grew from 2inches to about 10 inches in less than a year. Emperor from 3 inches to 8inches. Sold it within 8 mths. Queen and townsend will be slow, 1.5inches to 4inches about 6 mths.