国产成人在线网站-毛片基地在线快伦片-色多多视频污-av色综合久久天堂av色综合-精品国产人妻一区二区三区-国产一国产二-少女逼逼-色丁香久久-天天干天天综合-毛片其地

FEATURE

• Water pump, water circulation, water quality filter system are all built-in comprehensive integrated optimization design, water flow adjustment device, flow can be adjusted at will. No need to equip any external equipment, quick equipment and easy operation;

• Built-in water quality filtering system, comprehensive physics, chemistry, microbial decomposition and other new technologies, multi-layer biochemical filtering system, enhance the filtering effect, and ensure clear water quality;

• The waterfall-shaped water flow design mode turns the water surface of the ecological tank and helps release carbon dioxide in the water. Dissolve the oxygen in the air into the water to replenish enough oxygen in the cylinder.