Cryptocoryne Lutea

Quick facts

Identity

Also known as

Crypt lutea; Cryptocoryne walkeri Lutea

Synonyms

Cryptocoryne walkeri var. lutea

Environment

Freshwater

Native to

Sri Lanka

Habitat

Shaded, slow-moving limestone streams and river margins, submersed in the wet season and exposed on muddy banks as water levels fall.

Sourcing

Captive-bred

Conservation

Not Evaluated

Care

Care level

Easy

Growth form

Rosette

Max height

4 – 8 in (10 – 20 cm)

Spread

6 in (15 cm)

Growth rate

Slow

Placement

Midground, Foreground

Water

Temperature

68 – 82 °F (20 – 28 °C)

pH

6.0 – 7.5

GH

2 – 15 dGH

PAR

20 – 50 PAR

Flow

Low-Moderate

Light

Low

CO₂

Beneficial

Planting

Substrate

Nutrient-rich preferred

Feeds from

Roots

Fertilizer needs

Medium

Colors

Green, Brown

Feeding & breeding

Propagation

Runners, Rhizome division

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Care guide

Overview

Suited to beginner planted tanks needing a low-light midground grower, this compact rosette plant produces narrow, wavy-margined leaves in yellow-green to olive tones with occasional reddish undersides. It spreads slowly via runners into a naturalistic clump once established. Best planted once and left undisturbed, as moves or parameter swings often trigger melt.

Care

This is one of the easier Sri Lankan crypts for a beginner, tolerating a wide pH and hardness range and growing steadily under low to moderate light without added CO2. It forms a compact rosette of narrow, gently wavy leaves in yellow-green to olive tones, sometimes with reddish undersides, and slowly spreads into a clump via runners once settled. Like other crypts it resents being uprooted or moved and responds poorly to sudden shifts in water chemistry, so it does best planted once and left undisturbed.

Planting & trimming

Plant the rhizome shallowly with only the roots buried and the crown sitting at or just above the substrate line, since burying the crown can cause rot. Space plants a few inches apart to allow room for runners to fill in, and avoid disturbing established clumps since replanting often triggers another melt cycle. It can be grown submersed or emersed in a paludarium-style setup.

Fertilizing

Cryptocoryne lutea draws most of its nutrition through its roots rather than the water column, so root tabs pushed into the substrate near the base are more effective than liquid fertilizer alone. A nutrient-rich substrate or mineralized soil speeds up growth and clump formation considerably compared to plain gravel. Iron or micronutrient deficiency shows up as pale or yellowing new leaves, which usually resolves once root feeding is increased.

Propagation

Propagation is mainly by runners, which send up new plantlets a short distance from the parent that can be separated once they have their own roots. Mature clumps can also be divided by cutting the rhizome between rosettes, replanting each section separately.

Problems

New plantings frequently experience crypt melt, where leaves turn translucent and collapse within days of introduction or after a parameter swing. This is rarely fatal since the rhizome and root system typically survive, and a melted plant left undisturbed usually sends up a fresh set of submersed leaves within a few weeks. Keeping detritus and algae off the slow-growing leaves helps the plant recover faster and maintain its color.

Sources

1. Cryptocoryne walkeri Lutea care: light, CO2 and placement · TankBud
2. Cryptocoryne lutea
3. Cryptocoryne lutea (Cryptocoryne lutea) - Scale & Stem

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