Figured it out, and yes a harmless Algae grazer I guess they are like a Mini Turbo or something like that

Collonista Snails
The Grazing Snails, Part I - Turbo, Trochus, Astraea, and Kin by Ronald L. Shimek, Ph.D. - Reefkeeping.com

Edit: Darn! Chris beat me to it lol