Sand movement

[tsdid]

It's been a while since I set up my first tank and I have forgotten about things I went theough the first time around. I have strong flow in my new 180 about 1500-1600 gph and my sand in the front is moving and kicking up some. Does this eventually stop , or do I need to play with my returns untill it stops. I know sand eventually groups itself togather.

 

[9supratt4]

You are going to need to move around your returns....if you leave it as is, it will blow the sand out of that area until there is none left