Helanthium tenellum var. ‘Broad leaf’ is an aquatic plant that is often referred to as the Broad Leaf Chain Sword or Echinodorus tenellus ‘Broad Leaf.’ It is a variety or cultivar of Helanthium tenellum, formerly known as Echinodorus tenellus. The plant belongs to the Alismataceae family and is native to North and Central America.
The ‘Broad Leaf’ variety is a popular choice among aquarium enthusiasts due to its unique appearance and growth characteristics. As the name suggests, this variety is known for its broader leaves compared to the typical Helanthium tenellum or Echinodorus tenellus. The leaves are still relatively narrow compared to some other sword plant species, but the ‘Broad Leaf’ variety stands out for having wider and more robust leaves.
Provide moderate to high lighting levels in the aquarium. The plant will thrive and spread better under brighter light conditions.
The plant can tolerate a wide range of water conditions. However, it generally prefers a temperature range of 68-82°F (20-28°C) and a slightly acidic to slightly alkaline pH (around 6.5-7.5). It can adapt to both soft and moderately hard water.
Use a nutrient-rich substrate to promote healthy root development and growth. This is especially important for carpeting plants like Helanthium tenellum var. ‘Broad Leaf.’
Supplying carbon dioxide (CO2) to the aquarium will help the plant grow faster and healthier. CO2 supplementation is beneficial, especially in setups with high light levels.
Like most aquatic plants, Helanthium tenellum var. ‘Broad Leaf’ requires essential nutrients, including nitrogen, phosphorus, potassium, and micronutrients. Regularly dose your aquarium with a comprehensive liquid fertilizer or follow a suitable fertilization schedule.
Regularly trim the plant to maintain a neat appearance and encourage dense growth. It is a fast-growing plant and can spread through runners to create a beautiful carpet effect in the aquarium.