Choosing substrate

[dirtyxducks19]

Currently working on a 70 gallon tall mixed reef tank. I can’t decide on a substrate so I decide to look to the group and see what others have done. I am leaning towards something like white fine particle sands. Not a bunch of crushed coral and jagged particles. What’s everyone using and can you post a picture? Also how deep

 

[IKD]

Just something to consider. The finer/smaller the grain size, the more likely it will get blown around with your pumps. I have CaribSea Arag-Alive Fiji Pink Mixed with Reef Sand in my 310g and it does get blown a little bit but not too bad