Fighting conchs live in sand beds and eat Cyanobacteria and Diatoms predominately. They are excellent for keeping sand beds clean. I keep several in all my tanks. They are hardy and long lived in the average reef aquarium.
These will help control Cyano and diatoms on your sand bed in two ways. They stir the very top of the sand without disturbing deeper and they eat Cyano and diatoms. Increased water flow in your tank and use of a phosphate remover may also help rid your tank of cyano/diatom growth and that combined with the aid of several fighting conchs will put you well on your way to a healthy and beautifully clean sand bed.
