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Pearl Grass care guide

Pearl Grass (Micranthemum micranthemoides 'Pearl Grass') — high light, 22-28 °C, pH 5.5-7.5, CO2 recommended.

Overview

Pearl Grass (Micranthemum micranthemoides 'Pearl Grass') is an aquatic plant of the family Linderniaceae, listed in the Aquairi knowledge base as an intermediate-level species. It is typically grown under high light with pressurised CO2 injection on any substrate. Bushy stem plant with tiny round leaves resembling pearl grass. Easy to trim into low groundcover or let grow into a midground bush; thrives with CO2 and good light.

Taxonomy

  • Family: Linderniaceae
  • Genus: Micranthemum
  • Scientific name: Micranthemum micranthemoides 'Pearl Grass'
  • Common synonyms: Hemianthus 'Cuba' Pearl Grass

Habitat

Micranthemum is a genus of small creeping plants (Linderniaceae) of wet margins in the Americas; aquarium forms make low, fine-leaved carpets and foreground accents. In the Aquairi knowledge base, populations associated with this form are recorded from Cuba.

Growth requirements

  • Lighting: high
  • CO2: recommended
  • Temperature: 22-28 °C (72-82 °F)
  • pH: 5.5-7.5
  • GH: 2-12 °dGH
  • Substrate: aquasoil
  • Maximum height: 15 cm
  • Growth rate: fast
  • Recommended placement: midground

Placement

A foreground carpet or low accent; bright light, CO2 and good flow keep the growth compact and pearling, while shade makes it leggy. In the Aquairi knowledge base this form is recommended for the midground under high light with pressurised CO2 injection, using undefined.

Propagation

Propagated by cuttings and by dividing the mat; portions re-attach to substrate or hardscape and continue to spread. Documented propagation techniques for this entry include: stem cuttings.

Common issues

Without strong light and CO2 the plant stretches and detaches, floating to the surface; trimming and firm planting keep the carpet intact.

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