Although the Hydor A02100 confident in the installation and can be combined in very well indeed with the matching LED lights - what then at night looks quite pretty - but is probably the fact that the entire mechanism is located inside the aquarium, very loud. Unlike the usual air pumps have been here not the way to dampen the noise by appropriate placement of the device, and the Aquarium itself appears to act as a kind of sound box. Moreover, it is quite difficult to achieve uniform bubble image. So I would probably still draw in future rather back to a conventional pump with air stone.
