Has anyone used these? or have an opinion to share on them? 
I was at my dad's yesterday, and he has the CP2 rated at 1600 litres per hour I think, I was curious about them for using in planted tanks so i stuck my hand in to get a feel for the flow; and it literally felt like the smallest amount of displacement, akin to a 200lph powerhead if that.
Now I know powerheads are obviously far stronger in their directional flow, but i would have expected a 1600lph wavemaker to feel a good bit stronger than it was...any ideas?
I was at my dad's yesterday, and he has the CP2 rated at 1600 litres per hour I think, I was curious about them for using in planted tanks so i stuck my hand in to get a feel for the flow; and it literally felt like the smallest amount of displacement, akin to a 200lph powerhead if that.
Now I know powerheads are obviously far stronger in their directional flow, but i would have expected a 1600lph wavemaker to feel a good bit stronger than it was...any ideas?
