ideal for the cleaning of tanks with a height of 60 cm. A shut-off valve at the end of the tube, however, would considerably simplify the handling. After I made this retrofit, the emptying of the bucket is no longer a problem. The oval shape of the pipe is ideal, so you can clean even on very narrow passage passages the gravel. TIP: I have connected the suction to an old filter and can now quietly clean the bottom of the aquarium (of course, does not replace the water change !!!).
