Hornwort (Ceratophyllum demersum) is a widely distributed aquatic plant found in freshwater habitats worldwide. It is known for its fast growth and ease of care, making it a popular choice for both beginner and experienced aquarists.
Hornwort has long, branching stems covered in fine, needle-like leaves that provide valuable shelter and oxygenation in aquariums. This plant is highly adaptable and can thrive in various water conditions. It can be left floating or anchored in the substrate, and it's often used to combat algae growth and improve water quality.
Hornwort is exclusively a freshwater plant and is not suitable for saltwater tanks.
Recommended Water Parameters
Optimal water temperature: 18°C to 28°C (64°F to 82°F).pH level: Adaptable to various pH levels, with a preferred range of 6.0 to 7.5.
Water hardness (dGH): Tolerant of a wide range, typically 2 to 20 dGH.
Monitoring and maintaining stable water parameters are important for its health.
Water Type
Hornwort is a freshwater plant.Water Changes
Regular water changes are important to maintain water quality and nutrient balance. A typical water change might involve replacing 10-20% of the aquarium water every 1-2 weeks.Aquarium Lighting
Hornwort can thrive in low to moderate lighting conditions. It does not require intense lighting and can help reduce algae growth in the aquarium.Duration of daylight
Lighting duration: 6-8 hours a day is often sufficient.Air Pump
An air pump is not necessary for Hornwort, but it can enhance oxygenation.Filter
Filtration is preferred but not mandatory.Heater
A heater may be required to maintain the recommended temperature range.Is an additional source of CO2 needed
An additional source of CO2 is not usually needed.Roots
Hornwort does not have true roots; instead, it has fine hair-like structures that anchor it in the substrate.Stems
It features long, branching stems covered in needle-like leaves.Reproduction
Hornwort reproduces vegetatively by breaking apart into segments that can grow into new plants.Growth rates
Growth rates are rapid, and it can quickly fill an aquarium under favorable conditions.Lifespan
With proper care, Hornwort can thrive for several years in an aquarium.Source of food
While not a primary food source, Hornwort can provide shelter and microhabitats for small organisms that fish may consume.Interesting Facts
- Hornwort is often used in breeding tanks to provide cover for fry (young fish) and eggs.
- Due to its rapid growth and nutrient-absorbing properties, Hornwort is sometimes used in ponds and aquariums to combat algae blooms.
- In some regions, Hornwort is considered an invasive species when introduced to natural water bodies. Therefore, its use should be carefully managed to prevent ecological disruption.