PlantFun
Plant Needs
Sunlight
Requires moderate indirect sunlight or LED aquarium lighting; avoids extreme midday direct sun
Watering
Requires constant saltwater with salinity 30–35 ppt; does not tolerate freshwater exposure
Temperature
Thrives in cool to temperate coastal waters; sensitive to sudden temperature fluctuations
Characteristics
- Frond: Spongy, branching finger-like structures composed of interwoven filaments
- Texture: Soft, rubbery; retains shape temporarily when removed from water
- Color: Uniform bright to olive green, fading to brown under stress
Care Guide
Watering
Maintain consistent saltwater parameters; perform 10% monthly water changes
Fertilization
Obtains nutrients from water column; no additional fertilization needed in balanced aquariums. Ensure adequate nitrate and phosphate levels for healthy growth
Aged marine aquarium water：Use aged saltwater from established aquariums to maintain consistent nutrient levels; avoid adding unprocessed household materialsPruning
- Trim overgrown fronds to prevent overcrowding in aquariums
- Remove discolored, decaying fronds to preserve water quality
- Avoid damaging the holdfast (anchoring structure) when handling or moving
Toxicity
Warning: this plant may be toxic.
Pets & Humans
Pets: ASPCA does not list as toxic; no known adverse effects if ingested accidentally
Humans: No known toxic effects on humans; not intended for consumption
Garden Uses & Culture
Culture: N/A
Usage: Ornamental in saltwater aquariums; studied for marine bioremediation applications
