1.This Aquarium carbon dioxide Diffuser is for creating a rich source of carbon dioxide to provide your aquarium plants with the essential nutrition they need to thrive. By ensuring a healthy environment for your hydrophytes, promotes the overall well-being and vitality of your aquatic ecosystem. 2.The Aquarium carbon dioxide Diffuser is designed to effortlessly supply aquarium plants with a friendly living environment, allowing them to flourish and grow beautifully. The inclusion of a suction cup makes it easy to install and operate the diffuser, ensuring a firm and secure placement within your aquarium. Additionally, the adjustable positioning feature provides you with the flexibility to customize the diffusion process to suit the specific needs of your plants.