Propagating Bucephalandra 'Theia': Rhizome Division

How to propagate the compact, blue-iridescent Bucephalandra 'Theia' by dividing its rhizome and attaching pieces to hardscape, with care to avoid melt.

Overview

Bucephalandra is a genus of flowering plants in the family Araceae, endemic to the island of Borneo. In the wild these rheophytic plants grow as dense mats over stones and rocks in fast-flowing streams and rivers, rooting through creeping stems. 'Theia' is a compact cultivar prized in the aquarium hobby for its small oval leaves and subtle blue-purple iridescence over a deep green base.

Like all Bucephalandra, 'Theia' is a slow grower and an epiphyte: it attaches to surfaces rather than rooting in soil. This makes division of the rhizome the practical way to multiply your stock at home.

Propagation Method (Rhizome Division)

Bucephalandra propagates from its creeping, rooting rhizome. Farmed plants often arrive as large mats or clumps; separating a clump into individual plants gives each piece better access to water flow and light, which actually speeds up healthy growth.

Each division should be a section of rhizome carrying its own leaves and roots. From there you either tie or glue the piece to rock or wood, or rest it on the substrate — never buried.

Step-by-Step

1. Choose a healthy clump or mat with several leaves and visible roots.
2. Using clean scissors or your fingers, separate it into pieces, each keeping a length of rhizome with leaves and roots attached.
3. Tie each piece to rock or wood with thread, or fix the roots with a small dab of aquarium glue.
4. Keep the rhizome itself exposed to the water — do not cover it with glue or substrate.
5. Place divisions in stable, established water and give them time to attach and resume growth.

Conditions for Healthy Growth

'Theia' has flexible light needs and can be grown in shaded areas or in full light, and no CO2 is required for survival. Bucephalandra has fewer stress and melting problems in cooler, clean water, though it still tolerates warmer discus-range temperatures.

• Lighting: low to moderate; tolerates shade.
• Temperature: cooler, stable water reduces melt; warm tanks are tolerated.
• CO2: not required.
• Best in tanks with a mature, established biological system.

Maintenance

Because growth is slow, maintenance is minimal: keep water clean and stable, and trim away any leaves that have melted or deteriorated so the rhizome can push fresh growth. Divide again only once a clump has grown large.

Common Challenges

Melting is the main issue. Bucephalandra is very susceptible to melt in new, insufficiently cycled tanks and after transport or being moved between tanks with different parameters. Cool, clean, stable water — and patience — let the rhizome regrow even after the original leaves melt.