🌿 Overview

Rotala Sp. Bonsai, often identified as Ammannia Sp. Bonsai, is a popular compact stem plant widely used in aquascaping for its miniature tree-like appearance. Despite its name, it is not a true Rotala but is closely related to Ammannia species.

This plant is highly valued in Nature-style and Iwagumi aquascapes for creating dense bushes and structured layouts. Its slow growth and compact form make it ideal for aquarists who want a neat, controlled design.

🍃 Appearance

• Small, rounded to oval green leaves
• Short internodes create a dense, bushy look
• Thick stems with upright growth pattern
• Typically grows 10–20 cm tall
• Can resemble miniature shrubs or bonsai trees

With proper trimming, it forms tight clusters, making it perfect for detailed aquascaping.

🌿 Plant Type (Hard/Soft)

• Type: Stem plant
• Category: Soft aquatic plant
• Growth rate: Slow to moderate

🌡️ Ideal Water Temperature

• 20°C – 28°C (68°F – 82°F)

💡 Lighting Conditions

• Medium to high lighting preferred
• High light ensures compact and dense growth
• Low light may cause leggy, spaced-out stems

🌿 CO₂ Requirement

• Recommended but not mandatory
• CO₂ helps maintain tight, bushy structure and faster growth

⚗️ Ideal pH Level

• pH: 6.0 – 7.5
• Prefers slightly acidic to neutral water

💧 Other Requirements

• Substrate: Nutrient-rich substrate preferred
• Fertilization: Responds well to liquid fertilizers and micronutrients
• Water hardness: Soft to moderately hard water
• Requires frequent trimming to maintain shape
• Stable water parameters are important for healthy growth

🌱 Propagation

• Propagated through stem cuttings
• Cut the tops and replant into substrate
• Side shoots develop, increasing bush density over time

💡 Do You Know? (Fun Fact for SEO Engagement)

Despite being called “Bonsai,” this plant is not actually a bonsai tree—but its natural growth pattern mimics miniature trees, making it a favorite among aquascapers for creating forest-style layouts.

🏷️ Plant Category Classification (SEO Boost)

🟡 Beginner Friendly

✔ Moderate – Suitable for beginners with basic plant care knowledge

🟢 Non-CO₂ Plant (Low-Tech)

✔ Yes – Can grow without CO₂, but slower and less compact

🟢 High-Tech Plant

✔ Yes – Thrives in CO₂-injected, high-light aquariums with dense growth