Rotala sp. 'Green' [Rotala rotundifolia 'Green')

Rotala Green (specifically Rotala rotundifolia 'Green') is a highly popular, fast-growing aquatic stem plant known for its ability to maintain a vibrant, lime-green color even under intense aquarium lighting. Unlike standard Rotala rotundifolia, which turns bright orange or red under high light, this specific variety remains fresh, bright green, and develops a beautiful, dense, bushy growth habit.

Quick Profile

Scientific Name: Rotala rotundifolia 'Green' (sometimes referred to as Rotala sp. 'Green')

Family: Lythraceae

Origin: Southeast AsiaGrowth Rate: Fast

Placement: Midground to Background

Max Height: 40 to 50 cm

Key Growth Requirements

Lighting

Demand: Medium to High.

Behavior: Under medium light, it grows upright. Under intense lighting, its growth habit changes, spreading horizontally or creeping to form a dense, low thicket.

CO₂ & Nutrients

CO₂: Low to Medium. It can survive without injected carbon dioxide, but adding CO₂ results in much faster, thicker, and healthier growth.

Substrate: Thrives best in nutrient-rich aquascaping soil, though it can also grow in sand or gravel if root tabs are provided.

Trimming & Propagation

Side Shoots: The plant naturally produces numerous side shoots, creating a weeping or "hanging" look.

Trimming: Regular pruning is required. Cut the stems just above a leaf node to encourage even denser, bushier growth.

Propagation: Simply cut a healthy stem and replant the top portion back into the substrate.