To much flow?

[The boring name]

Hey guys I have a 55 gal community tank 1 angelfish 5 black neons and 3 Dalmatian Molly's. I want a powerhead to keep tank sand cleaner but I don't want my fish blowing every where

Here is the powerhead

 

[The boring name]

Also any other way I could keep sand cleaner I'm doin about 2 water changes a week