Coral Moss (Riccardia) care guide
Riccardia sp. (sold as R. chamedryfolia) · Aneuraceae
Coral Moss (Riccardia) (Riccardia sp. (sold as R. chamedryfolia)) is an aquatic plant. It belongs to the Aneuraceae family. It is native to Uncertain: the aquarium plant may be a different Riccardia (often sold as R. graeffei). True R. chamedryfolia is a widespread liverwort of Europe, North America, North Africa, Japan and tropical South America. It needs medium light. Water temperature: 15°C – 28°C. pH: 5.0 – 8.0. Care difficulty: Moderate. Growth rate: slow.
How do you care for Coral Moss (Riccardia)?
| Light | Medium (sources disagree: Tropica rates it high, others low to medium) |
|---|---|
| CO₂ | Helpful |
| Temperature | 15°C – 28°C |
| pH | 5.0 – 8.0 |
| Placement | Tied or glued to stone or wood, or wedged into crevices; can form a low carpet |
| Growth | Slow |
| Difficulty | Moderate |
| Family | Aneuraceae |
How do you trim and propagate Coral Moss (Riccardia)?
Needs very little trimming; tidy the edges now and then (it is brittle). Propagate by splitting cushions — every small fragment can regrow; tie them onto new spots.
What problems affect Coral Moss (Riccardia)?
Mainly slow establishment, since it is a naturally slow grower. (The often-quoted "dies above 27°C" has no reliable source.)
How do you fix Coral Moss (Riccardia) problems?
Be patient and keep fragments firmly attached until the rhizoids anchor.
Where does Coral Moss (Riccardia) come from?
Uncertain: the aquarium plant may be a different Riccardia (often sold as R. graeffei). True R. chamedryfolia is a widespread liverwort of Europe, North America, North Africa, Japan and tropical South America
Sources
- Riccardia chamedryfolia (With.) Grolle – taxon record and occurrence facets — GBIF
- Riccardia chamedryfolia — Flowgrow aquatic plant database
- Riccardia — Aquarium and Pond Plants of the World (USDA/idtools)
- Riccardia chamedryfolia — Atlas of Florida Plants (USF)
- Riccardia chamedryfolia – plant details — Tropica
- Riccardia chamedryfolia in-vitro (retailer listing reproducing Tropica data sheet) — Garnelaxia (retailer)
- Riccardia graeffei — Bolbi Aqua (hobby reference)
- Riccardia chamedryfolia — Wikipedia
Care details checked against these sources on 2026-09-23.
Which aquascapes and tanks use Coral Moss (Riccardia)?
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