I dont know the sex, will be awhile before that can be seen.
Red knee's males take about 3-5 years and die after sexual maturity. Females take about 5-7 years and can live upto 30 years, so these are slow growing and eating.
Green Bottle Blue's males take about a year and die after sexual maturity. Females take about 18 months and can live upto 15 years, so these are fast growing and eating.