This vacuum "eden 57461 501 gravel vacuum" is practical and effective. I just made my two aquariums, a 180ltr upon receipt yesterday and today that of 70 ltr. Two little flat: 1: is that even vacuum filled before using it, from the branch that have, I find it a while before being maximum operating but I mean, it's a little flat. The second would require a close to the switch and filter, as it would be easier to use (what I will do). By cons, easy assembly, cleaning (tap the filter going under water to remove debris) and use. Report price: this is a recommendable device for maintaining your aquarium whatever it soit.En relationship with those I use, the better.
