If the sand is too coarse it will trap detritusI have been bare bottom since last November. Seems to have assisted me in maintaining a better overall tank with less maintenance. I like the look of sand though. Maybe if you can use the larger gravel type sand, so flow isnt an issue.
My first and last dive was in a quarry when I got certified- then we had kids- have been able, until recently, to snorkel several times a year- so there was always sand- but my attention was always on the reef/ corals- when snorkeling with a group- everyone else was excited about the fish they saw- i loved to drift mostly and just take in the picture. The fish were secondary. Funny thing, most fish swam singly or a school- when I see some tanks today I get dizzy- dozens of fish swimming in all directionsMy First and Last Dives were at Noel's Wall, which is hundreds of feet deep. So no Sand we will ever see....lol