Work great for a low price

It just works with no problem at all. stream is in fact slow, but this is, depending on your placement of the pumps, very helpful.
Works good for 120x50x50cm with additional stream of the sump pump.
I would like to see the same kit with just some stronger pumps for bigger aquariums.

good wave action for a cheap price

for th price it has, it's a good product, i've no more sedimentaton on the reef and the corals have a movement more natural!!! :-D