The Persian Sword Plant, scientifically known as Echinodorus parviflorus ‘Tropica’, is a popular and attractive choice for freshwater aquariums. Originating from South America, this plant is known for its hardiness and adaptability to various water conditions, making it suitable for both beginner and experienced aquarists.
Persian Sword Plant Characteristics
The Persian Sword Plant features broad, sword-shaped leaves, which give it its common name. These leaves typically display a dark green coloration, sometimes with reddish-brown veins, adding a vibrant visual element to an aquarium. It is a rosette plant, meaning its leaves grow in a circular pattern from a central point. This species generally reaches a height of 15-30 cm (6-12 inches), forming a dense rosette over time. Its sturdy, somewhat crinkled leaves provide a textured appearance.
Aquarium Care
Maintaining the Persian Sword Plant in an aquarium requires attention to several environmental factors to promote its health and robust growth.
Lighting
The Persian Sword Plant thrives under moderate to high light intensity. Adequate lighting promotes healthy growth and enhances coloration. Insufficient light can lead to stunted growth and pale leaves; excessive light might encourage algae growth. A typical lighting duration of 8 hours per day is generally suitable for optimal plant health.
Water Parameters
This plant adapts well to a range of water conditions, preferring slightly acidic to neutral water with a pH between 6.5 and 7.5. Water temperature ranges from 22-28°C (72-82°F). Maintaining stable water parameters aids nutrient uptake and overall plant vitality.
Substrate
As a primary root feeder, the Persian Sword Plant benefits from a nutrient-rich, fine-grained substrate that retains nutrients for its extensive root system. If using an inert substrate like sand or gravel, root tabs placed directly beneath the plant are highly recommended to provide essential nutrients. This approach supports strong root development, which is crucial for the plant’s growth.
Fertilization and CO2
Regular fertilization, particularly iron supplementation, maintains the Persian Sword Plant’s lush green appearance. Liquid fertilizers provide water column nutrients, while root tabs are important for direct root feeding. While not strictly necessary, CO2 supplementation can significantly enhance growth and vigor, especially in higher light setups.
Planting and Placement
Handle the plant’s delicate roots carefully. The crown, where the leaves meet the roots, should not be buried in the substrate, as this can lead to rotting and hinder growth. Place this species in the mid-ground to background areas of the aquarium, allowing for its mature size. Proper placement helps the plant contribute to the aquascape without overshadowing smaller foreground plants.
Propagation
The Persian Sword Plant primarily propagates through adventitious plantlets that develop on mature flower stalks or runners. Once plantlets develop a few leaves and a sufficient root system, carefully detach them from the mother plant. Replant them directly into the aquarium substrate, where they will grow independently.
Common Issues
Common issues when growing Persian Sword Plants often relate to nutrient imbalances or environmental stress. Yellowing leaves indicate iron deficiency; supply iron through liquid fertilizers or root tabs. Stunted growth points to insufficient lighting or broader nutrient deficiencies, requiring adjustments in light intensity or increased nutrient supplementation. Leaves melting or disintegrating can occur due to sudden changes in water parameters or exposure to harmful chemicals. Maintaining stable water conditions and avoiding harsh substances helps prevent leaf melt.