Ludwigia Arcuata/ Needle leaf ludwigia (Large pot)

Ludwigia arcuata, commonly known as Needle Leaf Ludwigia, is a popular aquatic plant in the aquarium hobby. It’s well-loved for its fine, needle-like leaves and its vibrant coloration, which can range from green to reddish-brown under optimal conditions. Here are some key points about Ludwigia arcuata:

Description

• Leaves: Thin, needle-like, and can be quite dense. The leaves typically grow in opposite pairs along the stem.
• Color: The color can vary based on the lighting and nutrient conditions. Under high light and with sufficient iron, the leaves often turn a reddish or orange hue.
• Height: It can grow up to 12-20 inches (30-50 cm) tall, making it suitable for the midground to background in an aquarium.

Care Requirements

• Lighting: High lighting is preferred to bring out the best colors and encourage dense growth. It can tolerate moderate lighting but may not show its vibrant colors.
• CO2: Supplementing with CO2 is recommended for optimal growth and coloration, although it can grow without it, just at a slower rate.
• Water Parameters:
  • pH: Prefers slightly acidic to neutral water (pH 6.0-7.5).
  • Hardness: Soft to moderately hard water (2-12 dGH).
  • Temperature: 68-82°F (20-28°C).
• Nutrients: Regular fertilization is essential, especially with iron and micronutrients, to maintain vibrant coloration and healthy growth.

Propagation

Ludwigia arcuata propagates through cuttings. Cut off the top portion of the plant and replant it in the substrate. The cuttings will develop roots and continue to grow.

Placement in Aquarium

Due to its height and fine texture, Ludwigia arcuata is typically used as a midground or background plant. Its striking color makes it an excellent focal point in aquascapes.

Potential Challenges

• Algae Growth: High lighting and nutrient-rich water can lead to algae growth if not properly balanced.
• Leaf Drop: In low-light conditions or poor nutrient environments, it may drop its lower leaves.
• Growth Rate: In low-tech setups (without CO2 and high light), the growth rate can be slow, and the plant may not display its full color potential.

Overall, Ludwigia arcuata is a beautiful and rewarding plant for aquarists who can provide its preferred conditions. With the right care, it adds a splash of color and texture to any planted aquarium.