Indeed the product is sold without the air hose and without the "weight" 'which allows the pipe to remain at the bottom of the aquarium, without that this one goes when you put it on the strength of the bubbles, personally I've stuck in the corner between the filter and the aquarium glass. Must be purchased from a reseller. It is cheap (2.25) the silicone tubing) but it should still be be reported in the product description. Otherwise easy to install, simply snap the hose into the outlet provided for this purpose and place the air pump rather high and if possible not at the top of the aquarium because if it falls into water it can cause electric shock! It is silent as expected, I think I would recommend to a friend ...
