Rotala rotundifolia 'Manipurensis' is a variant of the commonly known Rotala rotundifolia, which is a popular and versatile stem plant in the aquarium hobby. This particular variant is distinguished by its unique coloration and growth patterns, making it an attractive choice for aquarists looking to add diversity and visual appeal to their planted tanks.
Characteristics:
- Appearance: Similar to the standard Rotala rotundifolia, the 'Manipurensis' variant has round leaves (rotundifolia means "round-leaved") when grown emersed and elongated, slender leaves when submerged. What sets 'Manipurensis' apart is its coloration, which can range from deep green to pinkish or reddish hues under high light conditions.
- Growth Habit: This plant exhibits a fast growth rate under optimal conditions, with stems that can reach upwards, seeking light. It tends to grow more compact and bushier than its more common counterpart, especially with regular pruning.
Care Requirements:
- Lighting: Rotala rotundifolia 'Manipurensis' thrives under medium to high lighting. Higher light levels are required to bring out the more vibrant pink and red tones in the leaves.
- CO2 and Fertilization: While it can grow in a wide range of conditions, CO2 supplementation and regular fertilization (macro and micronutrients) greatly enhance its growth rate and coloration. Without CO2, growth may be slower, and colors may be less intense.
- Water Conditions: Prefers clean water with temperatures between 22°C and 28°C (72°F to 82°F), and a pH range of 5.5 to 7.5. Regular water changes and attention to water quality will support healthy growth.
- Pruning: Regular pruning is beneficial and encouraged to promote a denser, bushier growth pattern and to prevent the lower parts of the stems from becoming bare as the plant grows taller.
Propagation:
Propagation is straightforward—simply cut the top portion of a healthy stem and replant it in the substrate. This method allows aquarists to easily multiply their Rotala rotundifolia 'Manipurensis' and create lush, dense areas in their aquascape.
Aquascaping Uses:
Its striking colors and adaptable growth habit make Rotala rotundifolia 'Manipurensis' an excellent plant for background and midground placements, depending on the tank size and aquascape design. It can create a beautiful contrast against green plants and is particularly effective in adding depth and interest to the aquascape.
Despite its beauty and versatility, it's worth noting that the availability of Rotala rotundifolia 'Manipurensis' may vary, and it might not be as commonly found as the standard Rotala rotundifolia. For those looking to add this particular variant to their aquarium, it may be worth seeking out specialized aquatic plant nurseries or community trading platforms.