PlantFun
Plant Needs
Sunlight
Requires moderate to bright underwater light; floating flowering spikes need air exposure for successful pollination
Watering
Requires constant, clean freshwater coverage; maintain adequate oxygen levels to prevent stagnation and foliage decay
Temperature
Thrives in cool to temperate freshwater; avoid extreme temperature fluctuations above 28°C to prevent stress
Characteristics
- Leaf: Submerged leaves are whorled, finely divided into feathery segments; floating leaves are small, linear
- Flower: Tiny, four-petaled flowers arranged in dense terminal spikes above water
- Stem: Slender, branching submerged stems with whorled leaf attachments
Care Guide
Watering
Maintain consistent water depth; monitor oxygen levels with aeration if needed
Fertilization
Diluted aquatic fertilizer every 2 weeks. Use low-nitrogen aquatic fertilizer to minimize algal growth while supporting foliage development
Established aquarium water runoff：Use dechlorinated water from established, low-waste aquariums to top off ponds or aquariums; avoid over-application to prevent algal bloomsPruning
- Trim overgrown submerged stems to reduce overcrowding and improve water circulation
- Remove spent flowering spikes after blooming to redirect energy to submerged foliage growth
- Thin dense patches to prevent light blockage for lower foliage and reduce algal competition
Toxicity
Warning: this plant may be toxic.
Pets & Humans
Pets: ASPCA: Non-toxic to cats
Humans: No known toxicity to humans
Garden Uses & Culture
Culture: N/A
Usage: Aquatic ornamental; provides shelter and foraging habitat for freshwater fish and invertebrates
