| 摘要 |
A water filtration and aeration system fastened to an aquarium to let gas (CO2, O2) be admitted in minute bubbles into water and then to let treated water be guided back to the aquarium. The system includes a gas diffusing unit, a flow guide assembly connected to the gas diffusing unit by a coupler, and an extension cylinder coupled to the flow guide assembly at the bottom. Gas and aquarium water are guided downwards to a mixing chamber in the coupler where they are mixed by a motor-driven vane, then treated water is guided by the flow guide assembly to flow out of the extension cylinder to the aquarium again.
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