By nature the orange spotted by is not a true sand sifter. It will only sift sand to create burrows. In nature they have a symbiotic relationship with pistol shrimps and will act as a scout while the shrimp makes a burrow for them to occupy. You might see it sift sand through its gills once in a while but not often. Diamond watchmans, tiger watchmans, sleeper heads, and twin spots are the true sifters. My diamond watchman takes mouthfuls of sand all day long. Downside is it will drop sand on corals that are place on the sand and supposedly it can wipe out Bacteria colonies In the sand. IMO
, if you have a sandbed thicker than 3" and your tank and live rock are fully established, then you should not have a problem.