Whats your current set up? What are they going into, tank size, tank mates, substrate, planted, bare bottom? Those look good they are young. If you feed good food and keep good water quality with lots of water changes, they should turn out to be great. Also depends on the genetics they come from. Are you getting them from a breeder or a LFS? Wish you had a better pic of the one on the bottom. I would like to see his fin completely extended. Almost looks like it's not developed correctly, could just be the angle though. Good luck.