Scientific Name: Tonina fluviatilis
Common Name: Tonina, Tonina Fluviatilis
Origin: South America
Growth Rate: Slow to Moderate
Difficulty Level: Advanced
Temperature: 22–28°C
pH: 4.5–6.8
GH: 1–4 dGH
KH: 0–2 dKH
High lighting is essential for healthy growth.
Strong light promotes compact rosette formation and vibrant light-green coloration.
Under insufficient lighting, stems become elongated, weak, and may deteriorate over time.
CO₂ supplementation is highly recommended.
Stable CO₂ levels are crucial for maintaining healthy growth and compact structure.
Without CO₂, the plant often struggles and may gradually decline.
Requires a consistent supply of macro and micronutrients.
Adequate nitrate, phosphate, potassium, and trace elements are necessary for healthy development.
Benefits from nutrient-rich substrates and regular water column fertilization.
Iron and micronutrients help maintain vibrant coloration and strong growth.
Best suited for the midground to background.
Often used as a focal or accent plant due to its unique star-shaped growth pattern.
Creates a striking contrast with red stem plants and broad-leaved species.
Propagated through stem cuttings.
Cut healthy tops and replant them into the substrate.
Growth is relatively slow, so propagation requires patience.
Prefers very soft, slightly acidic water.
Stable water parameters are essential, as the plant is sensitive to sudden changes.
Plant stems with adequate spacing to allow light penetration and healthy growth.
Excellent water quality and regular maintenance significantly improve success rates.
Tonina fluviatilis is one of the most elegant and sought-after stem plants in advanced aquascaping. Its distinctive star-shaped leaf arrangement and bright green coloration create a refined, textured appearance that stands out in planted aquariums. Due to its demanding requirements for soft water, strong lighting, and stable CO₂ supplementation, it is best suited for experienced aquarists. When maintained under optimal conditions, it forms beautiful vertical groups that add sophistication, depth, and visual interest to Nature, Dutch, and competition-style aquascapes.
