PlantFun
Plant Needs
Sunlight
Tolerates low to moderate indirect light; avoid intense direct sunlight that triggers excessive algae growth
Watering
As an aquatic plant, it requires constant clean, still or slow-moving freshwater; avoid stagnant, polluted water
Temperature
Thrives in 15–25°C; can tolerate brief drops to 5°C but will die if water freezes
Characteristics
- Leaf: Whorled, finely divided needle-like leaves arranged in dense clusters around slender stems
- Stem: Branching, rootless; anchors via thread-like rhizoids or floats freely in water
- Flower: Tiny unisexual greenish flowers without petals; pollinated underwater
Care Guide
Watering
Perform partial water changes every 2–4 weeks to maintain water quality
Fertilization
Add diluted liquid aquatic fertilizer once monthly. Avoid over-fertilizing to prevent harmful algae blooms
Established Aquarium Water Runoff：Use water from monthly aquarium water changes (free of added chemicals) to top off the tank/pond; avoid water with elevated ammonia levelsPruning
- Trim overgrown stems to control density and prevent overcrowding
- Remove yellowing or decaying foliage promptly to maintain water clarity
- Thin dense mats to improve water circulation and light penetration for submerged organisms
Toxicity
Warning: this plant may be toxic.
Pets & Humans
Pets: ASPCA-verified non-toxic to cats; no reported toxicity risks
Humans: Non-toxic to humans; no known adverse health effects from contact or ingestion
Garden Uses & Culture
Culture: N/A
Usage: Aquarium oxygenator, pond shelter for juvenile fish, natural algae control
