Homalomena Broad Cuneate (Red Stem)

Quick facts

Identity

Also known as

Cuneate Red Stem Homalomena

Synonyms

Aridarum sp. (trade misapplication)

Environment

Freshwater

Native to

Indonesia (Borneo)

Habitat

Shaded, fast-flowing rainforest streambanks and rocky margins in Borneo, growing as a rheophyte/epiphyte on rock and wood

Sourcing

Both

Conservation

Not Evaluated

Care

Care level

Moderate

Growth form

Rhizome

Max height

2 – 5 in (5.1 – 13 cm)

Spread

6 in (15 cm)

Growth rate

Slow

Placement

Midground, Background

Water

Temperature

72 – 82 °F (22 – 28 °C)

pH

6.0 – 7.5

GH

2 – 12 dGH

dKH

3 – 15 dKH

PAR

30 – 60 PAR

Flow

Moderate

Light

Low

CO₂

Beneficial

Planting

Substrate

Not needed

Feeds from

Both

Fertilizer needs

Low

Colors

Green

Feeding & breeding

Propagation

Rhizome division

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Care guide

Overview

Sourced from Borneo's rheophyte streambanks, this cuneate form carries broad spade-shaped leaves on deep red stems, distinguishing it from plain-stemmed relatives. It is grown attached to wood or rock rather than buried, tolerates submerged or emersed conditions, and benefits from medium to high light with CO2. Growth is slow and division-propagated.

Care

This Bornean aroid grows attached to hardscape rather than buried in substrate, much like Anubias or Bucephalandra, and tolerates both submerged and emersed conditions. It prefers low to moderate light and steady water parameters, since sudden shifts in chemistry or lighting can trigger leaf melt in newly acquired specimens. Growth is slow to moderate, and the plant can sit dormant for weeks before pushing a new leaf, so patience is needed rather than frequent adjustment.

Planting & trimming

Attach the rhizome to driftwood or rock using thread, super glue gel, or mesh, keeping the rhizome itself exposed rather than buried. Rinse away any rockwool or tissue-culture gel from the roots before mounting. Trim only dead or melted leaves back to the rhizome, leaving healthy foliage intact.

Fertilizing

Root tabs are not strictly necessary since the rhizome sits on hardscape rather than in substrate, but liquid fertilizer dosed into the water column supports steadier growth. Iron and micronutrient supplementation can help maintain leaf color and prevent pale new growth. CO2 is not required but noticeably speeds up development and leaf size.

Propagation

Propagate by dividing the rhizome into sections once it has produced several leaves and a healthy root mass, ensuring each division retains at least one growth point and some roots. New plantlets can also be separated when side shoots form along the rhizome. Divided pieces should be reattached to hardscape and left undisturbed to recover.

Problems

Burying the rhizome is the most common mistake and leads to rot and melt, so it must stay exposed above the substrate line when attached to wood or rock. Excess light combined with weak flow encourages algae to colonize the broad leaf surfaces, dulling their appearance over time. New imports often shed a leaf or two after transplant shock before settling in and resuming growth.

Sources

1. Homalomena Sekadau South care: light, CO2 and placement · TankBud
2. Homalomena Sp. Sekadau South Aquarium Plant
3. Homalomena sekadau south TC — Fishiotherapy

Varieties in the catalog

Homalomena Broad Sekadau SouthHomalomena JambiHomalomena Narrow Sekadau SouthHomalomena SamuraiHomalomena SilverHomalomena Sp. Sekadau SouthHomalomena Sub-Hasei

More Aroids

Aglaonema SimplexAridarum NakamotoiHomalomena HumilisHomalomena InsignisJosefia IntricataPhilodendron Pink Princess