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Dwarf sagittaria would grow under low light, you could also try micro sword, and crypt parva. What kind of led is it and what size is your aquarium? And what kind of substrate do you have? You may need to use root tabs to encourage carpeting
Monte Carlo carpet is easy to grow and looks very good and doesn't require co2 but if you add liquid carbon like Seachem excel it will benefit with good growth. You will also need fertz.