Tonina fluviatilis is a rare and highly sought-after stem plant prized for its bright green, star-shaped foliage and elegant upright growth. Its finely arranged leaves form dense rosettes around each stem, creating a striking architectural appearance that makes it a standout feature in high-end planted aquariums. Known for its unique texture and vibrant color, Tonina fluviatilis is a favorite among experienced aquascapers and is often used in Dutch-style and nature aquascapes as a focal point or planted in dense groups. With high lighting, soft water, nutrient-rich conditions, and consistent CO₂ supplementation, it develops compact growth and a lush, vibrant appearance. While more demanding than many stem plants, Tonina fluviatilis rewards proper care with unmatched beauty and a truly distinctive look. Care Guide Difficulty: Advanced Growth Rate: Moderate Placement: Midground to Background Lighting: High (Strong lighting is essential for healthy, compact growth) CO₂: Strongly recommended for optimal growth and long-term success Temperature: 22–28°C (72–82°F) pH: 5.5–6.8 Water Hardness: Soft (Low KH/GH preferred) Substrate: Nutrient-rich substrate recommended Propagation: Trim healthy stems and replant the cuttings into the substrate. Stable water conditions are important for successful propagation. Why You'll Love It Rare and highly prized aquarium plant Unique star-shaped bright green foliage Creates exceptional texture and visual contrast Perfect for Dutch-style and high-end nature aquascapes Forms elegant, upright groups with regular trimming A favorite among experienced aquascapers Tip: Tonina fluviatilis performs best in soft, slightly acidic water with consistent CO₂, strong lighting, and regular fertilization. Stable water parameters are essential for maintaining healthy growth.