Hornwort, Ceratophyllum Demersum Background Plant, Live Aquarium Plant for Aquascaping

(1 10-12 inch stem or 2 4-6 inch stems)

Hornwort (Ceratophyllum) is a fast-growing aquatic plant commonly used in aquariums and ponds. It’s a popular choice because of its ability to oxygenate water, absorb excess nutrients, and provide shelter for fish and fry. Hornwort thrives in a wide range of conditions and can grow either rooted in substrate or free-floating.

Here are some key tips and details about caring for hornwort (Ceratophyllum) in an aquarium or pond:

1. Light Requirements
• Medium to high light: Hornwort thrives under moderate to bright lighting, which encourages faster growth and keeps the plant healthy. However, it can also adapt to low light.
• Be cautious of direct sunlight in outdoor ponds to avoid algae blooms.

2. Water Parameters
• Temperature: 59–86°F (15–30°C). It’s very versatile and tolerates cold water in outdoor ponds and warmer tropical aquariums.
• pH: 6.0–7.5 is ideal, though it can tolerate slightly acidic or alkaline water.
• Hardness: Soft to hard water (5–15 dGH).

3. Growth and Placement
• Floating or rooted: It can be planted in substrate, but its brittle stems make it prone to uprooting. Many aquarists prefer to let it float, where it can grow freely.
• Fast growth: Trim it regularly to prevent overgrowth and shading other plants.
• It can grow up to 10 feet in ponds, so pruning is essential for managing size.

4. Role in Aquariums and Ponds
• Water oxygenation: Releases oxygen, promoting a healthy ecosystem.
• Algae control: Competes for nutrients, helping reduce algae.
• Hiding spot: Provides shelter for fry, shrimp, and small fish.
• Nutrient absorption: Acts as a natural filter by absorbing excess nitrates and ammonia.

5. Maintenance
• Pruning: Trim long stems to prevent them from overwhelming the tank or pond.
• Cleaning: Occasionally rinse to remove debris if grown in a high-flow area.
• Propagation: Easily propagated by cutting and planting segments of the stem.

Hornwort is a low-maintenance plant that benefits both beginners and experienced aquarists.