the best advice i can give you for a nano tank is that less is more.
treat it like a minature bonsai garden.
choose like one mabye 2 small colorful reef fish, or like a goby/pistol shrimp pair, or like one single neon dottyback.
10g is a little small for clown/anemone combo, but if you did a rose bubble anemone you might be able to get away with it..
as for corals under that light, look at acanthastrea, blastomussa, zoanthids, riccordea mushrooms, sarcophytons, photosynthetic gorgonians, pulsing zenia.