
Mosses, floating plants, and macroalgae
Fan Algae
Udotea flabellum
Photo: James St. John · CC BY 2.0 · Wikimedia Commons
Key facts
- Temperature23–27 °C
- pH8.1–8.4
- Adult size15 cm
- Difficulty★★★☆☆
- WaterMarine
Full profile
- Family
- Udoteaceae
- Origin
- Caribbean
- Size
- 5 – 15 cm
- Temperature
- 23 – 27°C
- pH
- 8.1 – 8.4
- Salinity
- 1.023 – 1.025
- Difficulty
- ★★★☆☆
- Water type
- marine
- Light
- medium – high
- Fertilization
- Needs calcium
- Growth
- slow
- Position
- planted in sand
- Propagation
- stolons
Notes: Calcified green fans. A relative of halimeda, slow-growing.





