help sex my americans

Hey guys, Just started to get my grow out tank going. Want to mix it up with Americans. Have started my stocking. Want your opinions on males/females. Stocking is 1 Gt around 2.5inch 1 gt around 2inch 2 texas both around 2inch 1 marbled fenestratus about 2inch 2 JD both 2inch 3 festae barely...