Aponogeton Boivinianus

Quick facts

Identity

Also known as

Crinkled Aponogeton

Environment

Freshwater

Native to

Madagascar

Habitat

Slow to moderately flowing freshwater streams and rivers in Madagascar

Sourcing

Aquacultured

Conservation

Not Evaluated

Care

Care level

Moderate

Growth form

Bulb

Max height

12 – 31 in (30 – 79 cm)

Spread

12 in (30 cm)

Growth rate

Moderate

Placement

Midground, Background

Water

Temperature

68 – 77 °F (20 – 25 °C)

pH

6.5 – 7.5

GH

2 – 12 dGH

dKH

2 – 10 dKH

Flow

Moderate-High

Light

Medium

CO₂

Beneficial

Planting

Substrate

Nutrient-rich preferred

Feeds from

Roots

Fertilizer needs

Medium

Colors

Green, Red, Brown

Feeding & breeding

Propagation

Rhizome division, Seeds

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Care guide

Overview

Madagascar's slow-flowing streams are home to this large bulb plant, prized for its heavily puckered, bullate leaves that emerge light green or reddish before darkening to olive with age. Mature specimens exceed two feet in height, so a 40-gallon or larger tank with moderate to strong flow suits it best. Periodic dormancy is normal and precedes a fresh flush of growth.

Care

This large bulb plant develops heavily puckered, bullate leaves that emerge light green or reddish before darkening to olive or deep green with maturity. It grows best in a spacious tank of at least 40 gallons where its tall leaves have room to spread without shading out neighboring plants. Moderate to strong water flow keeps the broad leaves clean and helps prevent algae from settling on the textured surface, and the bulb periodically goes dormant, needing a rest period before it resprouts new growth.

Planting & trimming

Set the bulb on top of the substrate or bury it only partway, leaving the upper portion exposed so it does not soften and rot. Once roots establish, the plant anchors itself firmly and can be left undisturbed for long stretches. Give it generous spacing from other background plants since mature leaves can reach well over two feet and spread nearly a foot wide.

Fertilizing

As a root feeder, this Aponogeton draws most of its nutrition through a nutrient-rich substrate rather than the water column, so root tabs placed near the bulb make a noticeable difference in growth. A weekly liquid fertilizer with iron and trace elements supports leaf color and helps offset any water-column deficiencies. Yellowing leaves, pinholes, or stalled growth usually point to a lack of nutrients rather than disease or pests.

Propagation

Mature bulbs occasionally produce offset bulbs that can be separated and replanted once they have their own root system. The plant can also be grown from seed after it flowers above the waterline and is cross-pollinated, though this method is slow and rarely practiced by home hobbyists. Bulb division is the more practical and commonly used method in the aquarium trade.

Problems

Some leaf loss and thinner, more delicate new growth are normal for several weeks after planting as the bulb adjusts from emersed nursery conditions to fully submerged life. Algae on the older bullate leaves is common when light is too strong relative to available nutrients and flow, and usually clears up once light duration or intensity is reduced and fertilization is increased. Burying the bulb completely often leads to rot, so it should sit on or only partly in the substrate with its crown exposed.

Sources

1. Aponogeton boivinianus (Aponogeton Boivinianus) Care Guide - Shore Aquatic
2. Aponogeton boivinianus Profile - Tropical Freshwater Fish
3. Aponogeton Boivinianus Care Guide | Melbourne Tropical
4. Boivin's Aponogeton (Aponogeton boivinianus) Care Guide & Plant Profile | Guidarium

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