Water movement

[Metrontech]

hey guys/gals thanks for all the help so far, it's been a good curve

So I have 2 - 660 gph pumps returning to my tank and 4 overflows (2 higher up in case of blockage)

I have a 1150 and a 600 power heads

I find that my tank has collections in the sand that I just can't seem to get water movement to

What is the best water movement practices?

How do you know if you have enough water movement?

Any suggestions?