Sphaerocaryum malaccense Care Guide
Sphaerocaryum malaccense is a rare Asian grass with narrow blades; an experimental aquarium plant used as a midground texture.
Overview
Sphaerocaryum malaccense is a grass of the family Poaceae and the only species in its genus. It is a rare aquatic grass with narrow blades arranged along creeping stems, used as a midground textural accent. It is poorly established in cultivation and rarely available in trade.
Taxonomy
- Family: Poaceae
- Genus: Sphaerocaryum (monotypic)
- Scientific name: Sphaerocaryum malaccense
Origin
The species is native to southern China, Indochina, the Indian subcontinent, Peninsular Malaysia, the Philippines and Sumatra, where it grows in marshy locations. It was for a time traded under the misapplied name Arthraxon sp. 'Malaysia' before being identified botanically.
Morphology
The plant has ovate to lanceolate leaves and a grass-like habit superficially resembling Arthraxon species. Submersed, the leaves can appear silvery because of a surrounding air film.
Tank requirements
- Lighting: medium to high
- CO2: recommended
- Temperature: 22-28 °C (72-82 °F)
- pH: 6-7.5
- GH: 3-12 °dGH
- Maximum height: about 15 cm
- Placement: midground
Planting and care
It can be cultivated submersed but lacks established aquarium protocols, and growers report mixed results even with high light and CO2. A nutrient-rich substrate and stable conditions are advised. It is sometimes considered better suited to emersed or riparium culture.
Propagation
Propagation is by cuttings: portions of the creeping stems are replanted and continue to grow from the substrate.
Difficulty
Rated intermediate. Limited cultivation experience, inconsistent submersed growth and rarity in trade make it a challenging, experimental species.