Bucephalandra Theia care guide
Bucephalandra Theia (Bucephalandra sp. 'Theia') — low light, 22-28 °C, pH 5.5-7.5, no CO2.
Compiled by Aquairi from published sources · Published · Updated
Overview
Bucephalandra Theia (Bucephalandra sp. 'Theia') is an aquatic plant of the family Araceae, listed in the Aquairi knowledge base as an intermediate-level species. It is typically grown under low light and without obligatory CO2 injection on any substrate. A compact Bucephalandra variety with small oval leaves that display a deep green base color overlaid with subtle blue-purple iridescence. The tight growth habit and small leaf size make it ideal for nano aquariums and detailed hardscape accent planting.
Taxonomy
- Family: Araceae
- Genus: Bucephalandra
- Scientific name: Bucephalandra sp. 'Theia'
- Common synonyms: Buce Theia
Habitat
Bucephalandra is a genus of rheophytic aroids endemic to Borneo, where the plants cling to rocks in fast-flowing, shaded, soft-water rainforest streams. Many local forms have been collected and propagated by aquarists in recent decades. In the Aquairi knowledge base, populations associated with this form are recorded from Borneo.
Growth requirements
- Lighting: low
- CO2: not required
- Temperature: 22-28 °C (72-82 °F)
- pH: 5.5-7.5
- GH: 2-10 °dGH
- Substrate: any
- Maximum height: 5 cm
- Growth rate: slow
- Recommended placement: epiphyte on wood or rock
Placement
Attached to wood or rock with thread or cyanoacrylate gel; like Anubias, the rhizome must not be buried. Soft to moderately hard water and stable, gentle flow promote dense compact growth. In the Aquairi knowledge base this form is recommended for the midground as an epiphyte on hardscape under low light and without obligatory CO2 injection, using any substrate.
Propagation
Multiplies by rhizome division and by lateral shoots; detached pieces with one or two leaves and a root tuft re-attach reliably to new hardscape. Documented propagation techniques for this entry include: rhizome division.
Common issues
Sudden environmental changes can trigger a stress response called Bucephalandra meltdown — leaves dissolve while the rhizome remains viable and re-leafs over weeks. Slow acclimation and stable parameters prevent it.
Propagating Bucephalandra 'Theia': Rhizome Division
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
- Choose a healthy clump or mat with several leaves and visible roots.
- Using clean scissors or your fingers, separate it into pieces, each keeping a length of rhizome with leaves and roots attached.
- Tie each piece to rock or wood with thread, or fix the roots with a small dab of aquarium glue.
- Keep the rhizome itself exposed to the water — do not cover it with glue or substrate.
- 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.