1 bunch - 8-10 stems Here's a summary of parameters for Vallisneria asiatica: Scientific Name: Vallisneria asiatica Water Temperature: 68-82°F (20-28°C) pH Level: 6.5-8.0 Water Hardness: Soft to hard (2-20 dGH) Lighting: Vallisneria asiatica can thrive in a wide range of lighting conditions, from low to high light. However, moderate to high lighting levels are generally preferred for optimal growth. CO2 Requirement: CO2 supplementation is not strictly necessary, as Vallisneria asiatica can grow well without it. However, adding CO2 can promote faster and more robust growth, especially in higher light setups. Substrate: Any substrate can work for Vallisneria asiatica, but a nutrient-rich substrate can encourage healthier growth. Sand or gravel substrates are common choices. Propagation: Vallisneria asiatica propagates through runners. New plantlets will sprout from the runners, and these can be separated and replanted to expand the plant's coverage in the aquarium. Care Level: Low to moderate. Vallisneria asiatica is generally easy to care for and requires minimal maintenance. Regular pruning of older or damaged leaves can help promote new growth. Special Considerations: This species of Vallisneria is known for its long, ribbon-like leaves that can reach impressive lengths. It is a popular choice for background planting in aquariums, creating a lush and natural backdrop. Vallisneria asiatica is also beneficial for providing hiding spots for fish and fry. Regular fertilization with a comprehensive liquid fertilizer can help ensure the plant has the nutrients it needs to thrive. By maintaining these parameters and providing proper care, Vallisneria asiatica can be a beautiful and easy-to-care-for addition to your aquarium, adding a natural and vibrant look to your aquascape.