Suitable plants include: Dwarf sagittaria, Sagittaria subulata (fast growing); Vallisneria (fast growing); Anubias; Java fern, Microsorum pteropus; Amazonian swords, Echinodorus sp. (fast growing); ...

But you might try Hydrocotyle leucocephala and Sagittaria subulata as two relatively undemanding South American plants that could do well given sufficient light. Older plants of the latter can get ...

A prostrate, mat-forming evergreen alpine with fine, green needle-like leaves and star-shaped lavender-blue flowers and small dark blue markins in the centre in spring and summer ...