Yundxi 10Piece Aquarium CO2 Ceramic Diffuser Disc Carbon Dioxide Replacement Slice Kit (3cm)

High-grade Ceramic CO2 diffuser, durable as well as elegant, adding a beautiful scenery to your aquarium. CO2 diffuser may release big CO2 bubbles during its first 1-3 days of usage. When ceramic disc becomes saturated with water, it will then release fine CO2 bubbles, this is normal and may take up to 3 days. Helps to ensure plants receive proper amounts of CO2, improve the growth and health of your plants with sufficient CO2 supply. An indispensable item for your fish tank or aquarium, durable and reliable. Replacement CO2 diffuser disc, high-density with silicon sealing ring, does not easily block. Ultra-thin shape of 5mm thickness, installed in the bottom can increase the efficiency of CO2 dissolved in water. Easy to Clean and replacement, very convenient. Clean up the replacement tablets regularly, it could be used for a longer time. 10PCS 20mm/30mm aquarium CO2 diffuser replacement is enough for you to use a long time. NOTE: Please soak the replacement tablets for 24 hours before using.