Pothos is second and varieties of Philodendron are third best. There are others, but they don't grow as well. Peace lily, Impatiens and possibly Nephthytis.
Pothos scientific name is epipremnum aureum. Wife started a 7G tank last year with the roots of this plant in it. The roots did grow everywhere and they were touching the substrate.
Algae quickly disappeared completely, I mean COMPLETELY, tank was so clean, as if it was cleaned with Javex.