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Datasheet
| Aquarium Compatible | yes |
| Plant Outdoor | unknown |
| Plant Emersed Growth | yes |
| Plant Growth | fast |
| Temperature Tolerance | 10°C / 50.00°F - 30°C / 86.00°F |
| Temperature | 20°C / 68.00°F - 26°C / 78.80°F |
| Carbonate Hardness | 0-14 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
Helanthium bolivianum, also known as Bolivian sword, is a small runner-forming aquatic plant that has been reclassified from the genus Echinodorus to its own genus based on recent relatedness analyses. Although commonly referred to by its former name Echinodorus bolivianus, there is some debate within the hobby about the precise classification of plants under this species.
Aquarium Suitability
This plant is considered suitable for aquariums, particularly in midground and foreground placements, including nano tanks, as it forms a grass-like lawn that enhances the overall aesthetic. Its fast growth rate and easy maintenance make it a popular choice among aquarists.
Demands and Hardiness
Helanthium bolivianum has moderate demands in terms of lighting and nutrient levels. It requires medium to high light intensity, carbon dioxide levels ranging from 10-40mg/l, and a temperature between 20-26°C. It shows tolerance to temperatures between 10-30°C. The plant prefers a pH range of 5-7.5 and low to moderate levels of nitrates, phosphates, and potassium.
Aquascaping & Usage
With its ability to form a dense carpet-like appearance, Helanthium bolivianum is well-suited for aquascaping purposes, especially as a foreground or midground plant. It can be used to create a lush green carpet effect in the aquarium, providing a visually appealing contrast against other aquatic species.
Propagation
Propagation of Helanthium bolivianum is primarily through runners, which enable the plant to spread horizontally in the aquarium. Regular pruning and maintenance can help control its growth and prevent overcrowding in the tank.
Habitat and Distribution
In its natural habitat, Helanthium bolivianum is found in regions where it can thrive in moist environments with access to water. While its exact distribution may vary, it is commonly associated with aquatic habitats in South America. However, its adaptability to aquarium conditions has made it a popular choice among hobbyists worldwide.