describe Diffusion plates break down carbon dioxide into lowercase bubbles that dissolve easily in water, allowing plants to absorb carbon dioxide for photosynthesis Stainless steel diffuser is durable, unbreakable and non-toxic to your flora and fauna The ceramic disc is replaceable, easy to disassemble and replace, please tighten it when installing Overall length 29 cm. The diameter of the ceramic disc is 36mm, and the CO2 diffuser is suitable for the standard CO2 gas pipe of 4*6mm (inner diameter 4mm, outer diameter 6mm) Adequate carbon dioxide intake in the aquarium is absolutely essential for aquatic plants, as carbon dioxide provides them with the carbon they need to survive. A carbon dioxide diffuser provides enough carbon dioxide to the aquarium. reduce carbon dioxide losses Fine foam, easy to clean Greatly boosts photosynthesis in plants Premium stainless steel and advanced ceramic technology CO2 escapes from the diffusion plate in the form of tiny CO2 bubbles, making CO2 easily soluble in water, making plants absorb CO2 faster, photosynthesis is effective, and waste of CO2 gas is reduced. We draw your attention to this fact. The mail board needs to be activated and the accumulated CO2 bubbles will exert some initial pressure; therefore, more CO2 will be released into the aquarium upon activation. Wait until this effect stops and don't increase the number of bubbles - otherwise, you will decrease the number of bubbles again. Check the CO2 rate in the aquarium using the CO2 permanent test system. Adjust the amount of CO2 in the aquarium by increasing or decreasing the number of CO2 bubbles. The diffuser ceramic disc is a consumable item. Lifespan depends on the type and rate of algae growth in the aquarium. The maintenance period is usually 7 to 60 days. If there is a lot of algae growing on the ceramic plate, the foam diffuser will not generate or grow outside the CO2, you can soak it with 84 disinfectant overnight (the supermarket sells it very cheap). Delivery Quantity: 1 Piece, Package Contents: Only the above package contents, excluding other products. Size: 29cm (Reminder: The size is measured by hand, please allow 1-2 cm measurement error) Color: transparent (Due to different monitors and lighting effects, the actual color of the product may be slightly different from the picture color.)