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Datasheet
| Aquarium Compatible | yes |
| Plant Outdoor | unknown |
| Plant Emersed Growth | yes |
| Plant Growth | fast |
| Temperature Tolerance | 6°C / 42.80°F - 32°C / 89.60°F |
| Temperature | 18°C / 64.40°F - 28°C / 82.40°F |
| Carbonate Hardness | 2-15 kh |
| pH Value | 5-7.5 ph |
| Light | medium-high |
| Carbon Dioxide (CO2) | 10-40mg/lmg/l |
| Nitrate (NO3-) | 10-50mg/lmg/l |
| Phosphate (PO43-) | 0.1-3mg/lmg/l |
| Potassium (K+) | 5-30mg/lmg/l |
| Iron (Fe) | 0.01-0.5mg/lmg/l |
General Description
Ruby Ludwigia, scientifically known as Ludwigia "Rubin," is a striking dark red aquatic plant that was initially introduced by the Danish aquatic plant nursery, Tropica, as Ludwigia repens "Rubin." Recent studies have identified it as a relative of Ludwigia glandulosa, likely a hybrid. Commonly referred to as Ludwigia "Rubin" or Ludwigia aff. glandulosa, this plant exhibits irregular intervals of opposite and alternate leaves along its shoot parts, a distinguishing feature from the strictly alternate-leaved Ludwigia glandulosa.
Aquarium Suitability
Ruby Ludwigia is highly suitable for aquariums, denoted by its easy-care nature and minimal special requirements. It flourishes under ample lighting conditions (0.5 watts per liter and above) and sufficient iron supply, showcasing its deep red coloration. It is a resilient plant that quickly recovers from transportation damage if provided with favorable growing conditions. With its eye-catching dark red hue, Ruby Ludwigia serves as a captivating focal point when placed in midground positions amidst green plants to accentuate its color.
Demands and Hardiness
As indicated in the provided table, Ruby Ludwigia thrives in water conditions with a pH range of 5-7.5 and temperatures between 18-28°C. It exhibits a fast growth rate and is compatible with carbon dioxide levels of 10-40mg/l, carbonate hardness of 2-15, iron levels of 0.01-0.5mg/l, nitrate levels of 10-50mg/l, phosphate levels of 0.1-3mg/l, and potassium levels of 5-30mg/l.
Aquascaping & Usage
Given its vibrant red coloration, Ruby Ludwigia is an ideal plant for adding colorful accents to aquascapes. It can be used effectively as an accent plant, in the background, or placed in the midground to enhance the visual appeal of aquarium layouts. Pairing Ruby Ludwigia with plants like Microsorum pteropus "Narrow Leaf" or Hygrophila balsamica can further amplify its striking colors within an aquatic setting.
Propagation
Propagation of Ruby Ludwigia is straightforward and similar to other stem plants. The plant readily forms lateral shoots that can be trimmed and replanted, along with its top shoots, to propagate new growth effectively.
Habitat and Distribution
The specific habitat and natural distribution of Ludwigia "Rubin" in the wild remain unspecified. However, as a popular aquatic plant in the aquarium trade, it is widely cultivated and distributed among hobbyists and aquatic plant enthusiasts globally.