Good MaterialThe CO2 diffuser is made of aluminum alloy, which is durable, scratch-resistant, and long-lasting. The knurled design has good anti-slip performance and does not harm the fish and shrimp in the aquarium. Due to the nickel-plated and polished surface, it has good anti-corrosion and anti-rust functions. The effect is remarkableThe aquarium CO2 diffuser can greatly improve the solubility of CO2 and the high diffusion efficiency of carbon dioxide. Provide a healthy environment for your fish and improve the growth and health of your plants with sufficient CO2 supply. Simple and Independent DesignFixed with a U-shaped plug, the height can be adjusted freely, and the U-shaped plug tube can prevent the flow of CO2 from being blocked. The high-density refined tablets make the bubbles more sensitive and it is not easy to block the diffuser. Once the CO2 refined tablets are used up, you can simply open the CO2 diffuser and replace it. Small Appearance The appearance is small and beautiful. With a suspended adsorption design, it will not occupy the bottom of the aquarium. It looks great and can use the space efficiently. Necessary System The CO2 diffuser is non-toxic, safe, energy-saving and environmentally friendly, and a necessary system for growing aquatic plants. It helps ensure that plants absorb the right amount of carbon dioxide, and by absorbing enough carbon dioxide, it helps improve the growth and health of plants. Feature: 1. Easy to install. 2. Excellent carbon dioxide dissolution rate. 3. Give your aquarium a stylish look. Size: as shown Color: blue Quantity delivered: 1 piece becomeveryrich