1. Dual Functions: It not only has an excellent gas diffusion function but also can accurately record the number of gas bubbles generated, allowing users to intuitively understand the gas input volume and better master the gas supply situation in the aquarium. 2. Clear Visibility: The bubble counter device is clearly designed, making it easy to observe the change in the number of bubbles. Even in a dimly lit aquarium environment, the data can be easily read. 3. Stable and Reliable: The diffusing and bubble - counting components are carefully adjusted, and the work is stable and reliable. There will be no inaccurate bubble counting or unstable gas diffusion effects.