What does this tube+attachment do? (And should there be water in it?) Aquael Turbo Mini filter : r/PlantedTank
Aquael Turbo Internal Power Filter (500) Fast Shipping. | eBay
Aquael MY - AQUAEL Aquarium Turbo Filter 500|1000|1500|2000 TURBO FILTER 1000, 1500 and 2000 models are equipped with a ceramic rotor axis, which results in their quiet operation and guarantees their durability.