You should be fine with one. At full blast its like having (2) Koralia 750's, but like me, I'm sure you won't have your's on constant mode. It'll be on one of the wave or ecosmart programs that ramp up and down throughout the day. They do move a lot of water, and in a seemingly different way then the Koralias do.
When I was watching mine earlier, because I had stirred up some sand during the pwc
, I could watch the particles movement, and watching the two different PH's were quite different.
The Koralia is like a turbine with a more directed flow, and the water immediately next to it is what goes through.
On the other hand the MP10 literally pulls water and floating particles from down near the sand bed up to the top and it like pushes out in a more spread out pattern.