Water Violet: Hottonia palustris
A striking stem plant with feather-like, pale green leaves that creates a soft, textured look in cool-water setups.

Water Violet
Water Violet (Hottonia palustris) is an exquisite aquatic plant characterized by its delicate, feathery foliage and vibrant white or pale purple flowers. Typically found in shallow waters, this plant adds a touch of elegance to any aquascape, creating a serene habitat that mimics its natural environments. With its unique appearance, Water Violet serves not only as a visual focal point but also as a functional element in maintaining water quality through its natural filtration capabilities.
Care Guide
To ensure the health and vitality of Hottonia palustris, adhere to the following care instructions:
- Lighting: Moderate to strong lighting is essential for optimal growth. Aim for 8-10 hours of light per day using aquarium-specific LED or fluorescent fixtures to achieve the right balance.
- Substrate: A nutrient-rich substrate will encourage robust root development. Consider using a soil-based or planted aquarium substrate that retains nutrients.
- Water Conditions: Maintain a water temperature between 18-24°C (64-75°F) and ensure a pH level of 6.5 to 7.5 for optimal growth. Regular water changes will improve overall water quality and support plant health.
- Pruning: Regular trimming is necessary to maintain the desired height and to encourage bushier growth. Remove any dead or decaying leaves to prevent detritus accumulation.
Nutrient Requirements
Hottonia palustris thrives in nutrient-rich environments and benefits from the following:
- CO2: While not strictly necessary, supplementing CO2 can promote lush growth and vibrant foliage. A CO2 injection system is recommended for advanced aquascapers.
- Fertilization: Regular use of a complete liquid fertilizer, rich in trace elements, will boost plant health. Dosing should be in accordance with the manufacturer's instructions, adjusted based on plant response and lighting intensity.
Natural Biomes
Water Violet is commonly found in diverse aquatic environments. Notable biomes that exemplify its natural habitat include:
These biomes provide an ideal setting for this plant, achieving a balance of light, nutrients, and water quality conducive to its growth.
Livestock Compatibility
Hottonia palustris coexists harmoniously with various fish and shrimp species. Ideal companions include:
- Tetras: Such as Neon Tetras (Paracheirodon innesi) and Cardinal Tetras (Paracheirodon axelrodi), which are peaceful and thrive in planted setups.
- Shrimp: Cherry Shrimp (Neocaridina davidi) and Amano Shrimp (Caridina multidentata) help maintain the tank by eating algae and organic debris without harming the plant.
- Small Cichlids: Certain dwarf cichlid species, like Apistogramma, can also be a suitable choice in a well-planted aquarium allowing their natural behaviors to flourish without damaging the delicate foliage of Water Violet.
Choose compatible species to foster a thriving aquatic ecosystem where both flora and fauna can prosper.