, it is sturdy and durable. A large amount of dissolved oxygen produces fine and abundant bubbles during the day and absorbs carbon dioxide at night.When there is dust clogging or air bubbles decrease, it can be taken out and cleaned. This product is used to add oxygen to the aquarium. Please use it by connecting the air pipe to the oxygen pump (not including two). Applicable pipe inner diameter: 4 mm. Please use it by connecting the air pipe to the oxygen pump.
Before use, it is best to soak it in the fish tank for two hours.