DIFFICULTY Easy–Moderate

A forgiving choice for newer planted tanks.

LIGHT Moderate

Around 9 hours is a useful starting point.

CO₂ Optional

Injection is not normally necessary.

GROWTH Slow

Low trimming needs.

PLANT OVERVIEW

About Cryptocoryne crispatula

A grass-like background crypt with crinkled narrow leaves.

Cryptocoryne crispatula forms flowing curtains of narrow, wrinkled leaves that move beautifully in flow. Like most crypts it feeds through its roots and rewards patience, filling in a background clump over time in medium light.
Shrimp friendly Low-tech 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 placementMidground
Typical height8–16 in
Typical width6 in
Suggested minimum tank5 gal
Suggested tank height8 in+
LIGHT + CO₂

Energy demand

Ideal lightModerate
Photoperiod range8–11 hr
Approx. PAR20–55
Injected CO₂Optional
CO₂ benefitModerate
NUTRITION

Where it feeds

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

Useful parameter range

Temperature72–82°F
pH6–7.5
GH4–18 dGH
KH3–15 dKH
PLANTING

How to plant it.

Substrate: Nutrient-rich substrate; root tabs help

Plant the crown just above the substrate; roots feed heavily.

GROWTH + PROPAGATION

What to expect after planting.

Propagation

Runners / daughter plants

Acclimation

Prone to "crypt melt" after a move or parameter change; usually regrows from the rhizome — leave it be.

COMMON PROBLEMS

What usually goes wrong.

Crypt melt after replanting or sudden parameter swings; slow to establish.