The bare bottom reef is the cleanest most efficient way to maintain a tank in my experience. This is my second bare bottom system. For myself I don't think I will use sand again for future systems. Planning for a bare bottom system makes all the difference and high flow is essential. This is sort of like my farm tank for limited editions. I will be making a frag or two. If you want something specifically let me know. Some of the rarest stuff I am keeping on a limited fraging schedule.