People treat Alternanthera reineckii like decoration. It is closer to a slow, quiet pet that responds to the water you keep. The Alternanthera reineckii Alternanthera reineckii is a workhorse plant for a reason: it tolerates a wide range of conditions and still looks good doing it.
At a glance
| Light | high |
|---|---|
| Temperature | 22 to 28 °C |
| pH | 6.0 to 7.5 |
| Height | 20 to 40 cm |
| CO₂ | beneficial |
| Growth | moderate |
Planting
Plant Alternanthera reineckii with the crown or rhizome clear of the substrate — burying it rots the base. In a 29-gallon tank, position it mid-ground or background depending on its height. Weaker setups do fine; pair it with our hornwort care: the fast nitrate eater guide for a layered look.
Light and CO₂
Run 9 hours of light a day on a timer to avoid algae swings. Alternanthera reineckii grows under high light and beneficial, though a small, steady dose of liquid fertiliser every 4 weeks pushes denser growth.
Propagation
Tip cuttings replant easily and colour up under light.
Common issues
Yellowing lower leaves usually mean a nutrient gap, not too little light. Trim dying leaves at the base, keep nitrates around 10 to 20 ppm, and avoid moving the plant every week — a solid angelfish care: graceful centrepieces for a community tank explains why stability beats tinkering.
