How to Care for Ceratophyllum demersum

Korean name: 붕어마름

An aquatic plant that grows underwater, providing oxygen and purifying water in aquariums. It grows well with fish and grows quickly.

Key facts

• Category: Aquatic plant
• Difficulty: Easy
• Where to keep: indoors
• Native to: Worldwide
• Growth rate: Moderate
• Pets: No known toxicity, so it is fine to keep around pets.
• Traits: submerged plant, aquarium, oxygen supply, water purification

Care Guide

• Light: Medium to bright light
• Watering: Grows in fully submerged conditions.
• Soil: No soil needed (no roots)
• Humidity: Aquatic environment
• Temperature: 10~28°C
• Fertilizer: Aquatic plant fertilizer

Common questions

How often should you water Ceratophyllum demersum?

Grows in fully submerged conditions.

Where should you keep Ceratophyllum demersum?

It likes Medium to bright light. You can grow it indoors. Use No soil needed (no roots).

Is Ceratophyllum demersum safe around pets?

No known toxicity, so it is fine to keep around pets.

Is Ceratophyllum demersum good for beginners?

Difficulty: Easy. It is forgiving enough for a first plant. Keep it around 10~28°C. Humidity: Aquatic environment. Fertilise Aquatic plant fertilizer.