Aponogeton Henkelianus Bulb

Quick facts

Identity

Also known as

Henkel's lace plant; Madagascar lace plant; Lace leaf; Ruffled Aponogeton

Synonyms

Aponogeton madagascariensis var. henkelianus; Aponogeton fenestralis

Environment

Freshwater

Native to

Madagascar

Habitat

Cool, shaded, fast-flowing streams and rivers in Madagascar, growing fully submersed among rocks and gravel

Sourcing

Aquacultured

Conservation

Not Evaluated

Care

Care level

Difficult

Growth form

Bulb

Max height

6 – 20 in (15 – 51 cm)

Spread

16 in (41 cm)

Growth rate

Moderate

Placement

Midground, Background

Water

Temperature

64 – 75 °F (18 – 24 °C)

pH

5.5 – 7.0

GH

2 – 10 dGH

dKH

0 – 6 dKH

Flow

Moderate

Light

Medium

CO₂

Beneficial

Planting

Substrate

Nutrient-rich preferred

Feeds from

Both

Fertilizer needs

High

Colors

Green

Feeding & breeding

Propagation

Rhizome division, Seeds

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Care guide

Overview

Streams and rivers of Madagascar are home to the wild ancestor of this lattice-leaved bulb, prized for its fenestrated, lace-like foliage. It demands cooler, soft, slightly acidic water and steady iron dosing rather than any single extreme, making it an advanced choice. Keepers should give it a solitary spot in the midground to background and expect occasional dormant melt periods.

Care

This lace plant is native to cool, fast-flowing Madagascan streams, so it does best in soft, slightly acidic water kept in the high 60s to low 70s Fahrenheit rather than a standard tropical tank. Moderate, even lighting is preferable to intense light, since the open, fenestrated leaf lattice offers algae plenty of surface to colonize if light is too strong relative to nutrient supply. It is considered an advanced plant because it demands consistent water parameters and steady fertilizing rather than any single extreme requirement, and it tends to sulk or melt when conditions fluctuate.

Planting & trimming

Rest the bulb on top of the substrate or bury only the bottom third to half, always leaving the growing point exposed, since fully burying it causes rot. It grows large and is best given a solitary, spacious spot in the midground to background of a larger tank where its sweeping leaves can spread. Remove dead or rotting leaves promptly and expect an occasional dormant period where growth slows and older leaves die back.

Fertilizing

The bulb behaves as a heavy root feeder, so pushing a root tab into the substrate near the base supports steady growth, supplemented with a weekly all-in-one liquid fertilizer for water column nutrients. Iron is particularly important; a shortage often shows up as yellowing leaves, holes beyond the normal fenestration pattern, or stalled growth. An overly rich substrate can backfire, sometimes producing brown spotting on the leaves, so moderation and stability matter more than heavy dosing.

Propagation

Mature bulbs commonly produce daughter bulbs (offsets) that can be carefully separated from the parent and replanted once they have their own roots. The plant also self-pollinates and can set viable seed from its emergent white or yellowish flowers, which can be collected and germinated for new plants, though offset division is the more reliable method in home aquariums.

Problems

Leaf melt shortly after planting or during a periodic rest phase is normal and not a sign of disease; reducing light for a few weeks while keeping fertilizing steady usually brings new growth back. Algae on the lattice-like leaves is the most common complaint and typically points to excess light relative to nutrients or weak flow rather than a problem with the plant itself. Because the leaf tissue is naturally perforated, any additional holes beyond the normal lace pattern, along with yellowing, usually signal a nutrient deficiency rather than pest damage.

Sources

1. Aponogeton Henkelianus Care Guide | Melbourne Tropical
2. Aponogeton Henkelianus - Aquarium plants — Aquariumplantenshop
3. Henkel's lace plant care: light, CO2 and placement · TankBud
4. Aponogeton Henkelianus – Aquapets (KowloonAquarium)