Does what it needs to do for a cheap price.

Ottimo prodotto, è gia'il secondo che acquisto

Seh r starke Strömung , wie beschrieben

The manufacturer says that this 10 W wave maker is suitable for 80-150 cm aquariums. Well, I have a 130 cm and I must say that this pump borders to the violent side for that size. I even closed the throttles on the sides as much as possible to reduce flow, but I think the 3 W would have been more suitable for a more gentle stream but I could not find that model here on Amazon.Had it been a saltwater aquarium or a hillstream biotope aquarium I am sure this pump would have been great for this size, but I have mainly rasboras and barbs, so... But we'll see. I'll leave it on for a week or so, and then evaluate it. So I will come back for an update.Update: I think this was a beneficial upgrade to the tank. At first it seemed that the current was too strong, and there was a lot of debris swirvling around. But after a day or so most of the particles had got sucked into the filter or been deposited in other places. The fish seems to enjoy it, they play arolnd with the current and some display spawning behaviour and they are schooling a lot better. So recommended at least for aquariums in the upper range of the manufacturers classification and if you want livlier fish. The plants seem to thrive too. But make sure you direct the current to one of the sides so you get at clear direction.