Hornwort (Ceratophyllum demersum) is a popular floating plant in freshwater aquariums, prized for its fast growth and ease of care. With its fine, feathery green foliage, hornwort provides excellent cover for fish and fry, creating a natural refuge and reducing stress in the tank. It also helps improve water quality by absorbing excess nutrients and competing with algae, making it a natural ally in maintaining a balanced aquarium. As a free-floating plant, it doesn’t require substrate, making it ideal for bare-bottom tanks or where flexibility is needed.