Horizon Labs Micranthemum calitrichoides Cuba 'In Vitro'

Hemianthus callitrichoides “Cuba” – Premium Carpet Plant

Common Name: HC “Cuba”
Scientific Name: Hemianthus callitrichoides
Family: Linderniaceae
Origin: Cuba
Type: Foreground carpeting plant

Appearance:

• One of the smallest-leaf aquarium plants

• Tiny, round, bright green leaves

• Forms an extremely dense, low carpet

• Signature “pearling” under strong light and CO₂

Care Requirements:

• Light: High (essential for compact growth)

• CO₂: Strongly recommended for success

• Water: Soft to medium hardness, pH 5.5–7.0

• Growth Rate: Medium

• Placement: Foreground

• Difficulty: Moderate to difficult

Special Features:

• Creates iconic, ultra-fine Iwagumi carpets

• Excellent for advanced aquascapes

• Great for nano tanks due to small leaf size

Tips for Best Growth:

• Plant small portions spaced out for even spreading

• Provide high CO₂ and stable parameters to prevent melting

• Trim regularly to maintain low, dense carpeting

• Works best in nutrient-rich substrate

Perfect For:

• Iwagumi foregrounds

• High-tech planted tanks

• Aquascapers seeking a “lawn-like” carpet