All the premiums are Bigtrea. My favourite was 1.6, but sadly they're sold out or something. But if you're somewhat new to this the 1.5 should be sufficient. The different colours are all Bigtrea nano. Look at the packaging and you'll see a big tree, can't miss it :D Whites do nothing for me, but generally speaking, greens gives me energy and reds are more relaxing. I like to mix green and red. Or premium and red. PS Actually, why don't you talk directly with Yasin on TG yourself. Really n