This creation is a filter box structure.One side of the filter box is provided with a water inlet hole.A support frame is arranged on the other side opposite to the water inlet hole.A water outlet is arranged at the bottom of the box body.The outside of the box body can be connected with a support seat.It can be used to place a pumping device.The box also includes a trickle pipe.Filter cotton placement box,Buffer plate,Partition and filter material partition,Pumping equipment is used to draw water to the trickle pipe.There are several holes in the trickle pipe.Water drips out of several holes.The filter cotton in the first gap first filters the larger impurities.And then flows to the second gap through the hole at the bottom of the filter cotton box.The second gap is to increase the oxygen content of water.Then the water flows down from the second gap to the filter material placement on the other side.After several filter materials are placed continuously,Finally, it flows into the aquarium.To keep the water pure and increase the growth of probiotics.本創作是一種過濾盒結構，該過濾盒一側設有一入水孔，相對入水孔之另一側設有一支撐架，箱體底部設有一出水孔，其中該箱體外部可連接一支撐座，可用來放置一抽水裝置，該箱體內還包含有滴流管、過濾棉放置盒、緩衝板、隔板以及濾材隔板，利用抽水設備將水抽取至滴流管，滴流管上有數個孔洞，水由數個孔洞滴出，由第一間隙之過濾棉先將體積較大之雜質過濾，再經由過濾棉盒底部的孔洞流至第二間隙，該第二間隙是為了增加水的含氧量，接著水由第二間隙往下流至另一側之濾材放置處，經過連續幾個濾材放置處後，最後再流入水族箱內，達到保持水質純淨及增加益生菌的生長。
