Weeping Moss

Native to parts of Asia, Vesicularia ferriei is one of those mosses that earns its name completely. Where most mosses just kind of spread outward, weeping moss grows with a distinct downward droop to its fronds, creating that signature cascading effect that nobody forgets once they've seen it in a well-planted tank. Attach it to elevated driftwood or cork bark and the branches hang down like a miniature willow, which is genuinely hard to achieve with any other plant.

Care is straightforward. It tolerates low light without dying back, though it'll grow more slowly and look a bit less lush without supplemental CO2 and decent circulation. Speaking of circulation, flow matters more with this moss than most people expect. Stagnant water leads to algae smothering the fronds before the moss can really take hold.

Propagation is just trimming and reattaching, no special technique required. It anchors itself with rhizoids over several weeks when tied or glued to hardscape. If you've been searching for something to drape over a raised piece of wood and create that waterfall-of-green look, this is the one to try.