Seven Master Small Anti-Gas Lift Filter Mini Fish Tank Aquarium Accessories Pneumatic Filtration Oxygenated Biochemical Filter

Seven Master. Strong filtering ability, keep the water clear for a long time, reduce frequent water changes. Decompose excrement into small particles and absorb them back into biochemical cotton to cultivate them into nitrifying system. New filter air stone can improve the solubility of oxygen in water. Exquisite mini, does not take up space, suitable for all kinds of small fish tanks. Size: 5.5 x 11cm. Seven Master Small Anti-Gas Lift Filter Mini Fish Tank Aquarium Accessories Pneumatic Filtration Oxygenated Biochemical Filter. Product features: No suction of fish and shrimp, culture of bacteria to purify water, oxygenation of small fish tank, fixed suction cup, can be connected to 4mm trachea, Strong filtering ability keeps the water clear for a long time, reducing frequent water changes in a small amount, Decompose the excrement into small particles and suck them back into the biochemical cotton to cultivate the mature bacterial system, Filtering air bubble stone can increase the so