Good Material The 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 fish and shrimp in the aquarium. Due to the nickel-plated and polished surface, it has good corrosion and rust protection functions. The effect is remarkable The aquarium CO2 diffuser can greatly improve CO2 solubility and high carbon dioxide diffusion efficiency. Provide a healthy environment for your fish and improve the growth and health of your plants with sufficient CO2 supply. Simple and independent design Fixed with a U-shaped cap , the height can be adjusted freely, and the U-shaped cap tube can prevent the CO2 flow from being blocked. High-density refined tablets make the bubbles more sensitive, and it is not easy to block the diffuser. After the CO2 refined tablets run out, you can simply open the CO2 diffuser and replace it. Small appearance The appearance is small and beautiful. With suspended adsorption design, it will not occupy the bottom of the fish tank. It looks great and can use space efficiently. System needed The CO2 diffuser is non-toxic, safe, energy-saving and environmentally friendly, and a necessary system for growing aquatic plants. It helps to ensure that plants absorb the right amount of carbon dioxide and by absorbing enough carbon dioxide it helps to improve plant growth and health. 6cm