Here's a way to improve the health of your aquarium plants and pets. This glass aquarium C02 diffuser increases the supply of carbon dioxide essential for the growth of aquatic plants. It features a ceramic diffuser with pores to generate bubbles for quick C02 diffusion. The hardy, transparent glass material makes it attractive and durable. The glass aquarium C02 diffuser has a compact design, with a tube-shaped inner part, to allow the flow of C02 bubbles. What’s more, the adjustable suction cup makes it easy to position anywhere in your aquarium. In addition, this is a 4in 1 device-You can use it as a bubble counter, atomizer, solenoid regulator and a C02 diffuser.