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PlantbeginnerFreshwater

Rotala Nanjenshan

Rotala nanjenshan

PlantaeTracheophytaMagnoliopsidaLythraceae

📍 Taiwan

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A delicate stem plant with small, narrow leaves that form feathery, bright green whorls. Under high light and CO2 it develops a slight pinkish tint at the growing tips. It grows vigorously and is a great mid-to-background filler, tolerating a wide range of conditions better than most Rotala species.

Common Diseases

Nutrient Deficiency

Symptoms

Yellowing or pale new growth, stunted development, loss of color intensity

Treatment

Increase fertilizer dosing with all-in-one liquid fertilizers or add root tabs; ensure adequate lighting and CO2 for nutrient uptake

Algae Overgrowth on Leaves

Symptoms

Green or brown algae coating leaf surfaces, reduced photosynthesis, plant vigor decline

Treatment

Increase water changes, reduce light duration to 8-10 hours daily, introduce algae-eating shrimp or fish, and manually remove affected leaves

Melting (Decay)

Symptoms

Leaves becoming translucent, mushy stems, rapid tissue breakdown after planting

Treatment

Trim affected portions, improve water quality with frequent changes, ensure adequate light and circulation, and avoid burying stems too deeply

Slow Growth or Stagnation

Symptoms

Minimal new leaf development, pale coloration, plant appearing dormant

Treatment

Increase light intensity (moderate to high), add CO2 supplementation, boost fertilizer dosing, and verify water parameters are within optimal range

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Quick Facts

co2
Not required, benefits from CO2
light
Low–High
placement
Mid–Background
tank size
10 gallons minimum
growth rate
Fast

Water it likes

ph
6.0–7.5
hardness
2–15 dGH
temperature
68–82°F (20–28°C)

Stats

Community tips0
Growing in0 tanks