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Datasheet
| Reef Compatible | Yes |
| Care Description | Moderate |
| Water Flow | Medium |
| Temperature Tolerance | 20°C / 68.00°F - 27°C / 80.60°F |
| Specific Gravity | 1.023-1.025 |
| Carbonate Hardness | 8-12 kh |
| pH Value | 8.1-8.4 ph |
| Light | medium-high |
| Nitrate (NO3-) | 5-50mg/lmg/l |
| Phosphate (PO43-) | 0.1-3mg/lmg/l |
| Potassium (K+) | 1-30mg/lmg/l |
| Iron (Fe) | 0.01-0.5mg/lmg/l |
General Description
The Mermaid's Fan plant, scientifically known as Udotea sp., is a green calcareous algae that can be found throughout the Caribbean region. It features short stems that grow out of the substrate or live rock, forming oval-round, fan-like leaves. These plants deposit limestone, specifically calcium carbonate, in their tissues.
Aquarium Suitability
Mermaid's Fan plants are suitable for marine aquariums and are generally hardy under the right conditions. They require medium-high lighting and adequate calcium supplementation. It is important to maintain stable water parameters, specifically carbonate hardness between 8-12, a pH range of 8.1-8.4, and a specific gravity of 1.023-1.025. They are tolerant of a temperature range of 20-27°C and moderate water flow.
Demands and Hardiness
Mermaid's Fan plants have moderate care demands and are not as tolerant of high nitrate or phosphate levels compared to some other algae species. They are sensitive to extensive pruning and benefit from the occasional supplementation of trace elements and iron in the water.
Aquascaping & Usage
These algae can be used for decorative purposes in marine aquariums, adding a unique texture to the aquascape. Their fan-like leaves create an interesting visual appeal and can contribute to the overall aesthetics of the tank.
Propagation
Propagation of Mermaid's Fan plants can be achieved through fragmentation, where pieces of the plant can be carefully detached and reattached to live rock or the substrate, allowing them to regenerate and grow.
Habitat and Distribution
Naturally, Mermaid's Fan plants are found in the warm waters of the Caribbean region, where they thrive in marine habitats with adequate lighting and suitable conditions for calcium carbonate deposition. Their presence contributes to the biodiversity and ecological balance of the underwater ecosystems.