Too much flow from return

[jeffersoncalifornia]

So recently bought and set up a Red Sea max s 500. I am upgrading my 50 gallon cube. It seems like there is way to much flow from the return. It’s blown dunes into my sand and there always seem a to be a bit of sand flying around. I cannot find a speed adjuster on the return.. is there some other attachment to spread out the flow of something? So that it’s not so much like a water hose on full blast..
any ideas

 

[SPR1968]

Ive got the S650 and if it’s the standard Red Sea pump you can’t adjust it, it’s just on or off.

You can buy attachments but It’s really just a matter of adjusting the output nozzle until the sand calms down. It will settle.

You could also put some slightly heavier sand/coral bits around the corners or any areas badly affected