Ceratophyllum is a genus of aquatic plants in the Ceratophyllaceae family, commonly known as Hornwort. There are several species of Ceratophyllum that are popular among aquarium hobbyists, including Ceratophyllum demersum, also known as "coontail".
Ceratophyllum plants have long, thin, branching stems covered in small leaves that give them a feathery appearance. They can be rooted in the substrate or free-floating, and they typically require moderate to high lighting and a nutrient-rich substrate to thrive. Ceratophyllum plants can be propagated by dividing the stem or by planting cuttings.
Ceratophyllum plants can provide several benefits to an aquarium environment. They can help to oxygenate the water, absorb excess nutrients, and provide hiding places for fish and other aquatic inhabitants. Additionally, Ceratophyllum can be used as a food source for herbivorous fish.
Overall, Ceratophyllum is a great addition to any aquascape, providing both functional benefits and aesthetic appeal. While it can grow quickly and become invasive if not properly maintained, it can create a natural and vibrant aquarium environment if provided with the right conditions.