Monte Carlo (Micranthemum tweediei)

Monte Carlo (Micranthemum tweediei ‘Monte Carlo’) is a popular carpeting plant in aquascaping, valued for its small, round leaves and ability to form a lush, vibrant green carpet with less difficulty than more demanding species. It offers a balance between beauty and ease of care, making it a favorite among both beginners and experienced aquascapers.

Native to Argentina, this plant grows by spreading horizontally across the substrate, sending out runners that develop into dense mats. Its slightly larger leaves compared to Dwarf Baby Tears give it a fuller, textured look while still maintaining a compact, low-growing profile.

Monte Carlo adapts well to a variety of aquarium conditions and can thrive in moderate lighting, though it benefits from CO₂ supplementation for faster growth and tighter carpeting. Once established, it creates a soft, rolling green foreground that enhances depth and natural aesthetics.

Key Features

• Small, round, bright green leaves
• Forms a dense, lush carpet
• Spreads easily via runners
• More forgiving than Dwarf Baby Tears
• Adds texture and depth to layouts
• Suitable for a wide range of aquascapes

Care & Growing Conditions

• Lighting: Moderate
• Temperature: 74–82°F
• pH: 6.0–7.5
• Water Flow: Moderate
• CO₂: Recommended (but not strictly required)
• Propagation: Runners and trimming/replanting

Tip: Trim regularly to keep the carpet low and encourage horizontal spreading rather than vertical growth.

Ideal Uses

• Foreground carpeting plant
• Nature-style and Iwagumi aquascapes
• Beginner-friendly carpet option
• Filling midground-to-foreground transitions
• Low-tech to high-tech planted tanks

Plant Details

• Scientific Name: Micranthemum tweediei ‘Monte Carlo’
• Common Name: Monte Carlo
• Plant Type: Carpet plant
• Origin: Argentina
• Growth Rate: Moderate (faster with CO₂)
• Placement: Foreground
• Difficulty: Easy to medium
• Max Height: 1–2 inches