DIFFICULTY Moderate

Benefits from more deliberate care.

LIGHT High

Around 10 hours is a useful starting point.

CO₂ Recommended

Can grow without it, but responds noticeably to supplementation.

GROWTH Fast

Weekly trimming needs.

PLANT OVERVIEW

About Rotala 'Nanjenshan'

A needle-leaved green rotala with a soft, feathery look.

Nanjenshan' produces whorls of fine, narrow leaves for a delicate, hedge-like texture. Less color-dependent than the reds, it's a good introduction to fine-leaved rotalas in a CO2 tank.
Shrimp friendly Nano suitable High-tech suitable
CARE PROFILE

What this plant needs.

The useful numbers and practical notes, grouped around how you actually keep the plant.

TANK FIT

Placement + size

Primary placementBackground
Typical height6–16 in
Typical width2 in
Suggested minimum tank10 gal
Suggested tank height12 in+
LIGHT + CO₂

Energy demand

Ideal lightHigh
Photoperiod range8–12 hr
Approx. PAR40–100
Injected CO₂Recommended
CO₂ benefitHigh
NUTRITION

Where it feeds

Root feedingLow
Water-column feedingHigh
Overall fertilizer demandHigh
Iron demandHigh
MicronutrientsModerate
WATER

Useful parameter range

Temperature70–82°F
pH5.5–7
GH1–12 dGH
KH0–8 dKH
PLANTING

How to plant it.

Substrate: Nutrient-rich substrate

Plant stems individually with space; replant trimmed tops to thicken the group.

GROWTH + PROPAGATION

What to expect after planting.

Propagation

Stem cuttings

Acclimation

Submersed leaves differ from emersed stock; expect a transition after planting.

COMMON PROBLEMS

What usually goes wrong.

Lower leaves drop and color fades without strong light, CO2 and iron.