Ludwigia repens rubin, commonly known as Rubin or Red Water Primrose, is a popular and well-loved aquarium plant that belongs to the evening primrose family. This species derives its name from the brilliant red coloration of its leaves.
The plant has creeping stems that can grow up to 20 inches long under good conditions. Its oval-shaped leaves usually measure between one and two inches in length and are light green to deep maroon in color. The bright ruby-red hue provides an eye-catching contrast against the surrounding foliage in any aquarium setting.
Rubin thrives in moderately-high light environments and demands specific CO2 and iron supplements, making them suitable for advanced aquarists with significant experience. Adequate fertilization helps to maintain healthy growth, and frequent trimming encourages bushier plants.
This aquatic plant serves as an excellent background, midground or filler due to its impressive height and form when sufficiently matured. Additionally, it creates a naturally appealing habitat for bottom-dwelling freshwater fish and shrimp, providing shade cover for them to thrive.
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