The Hawaiian Cleaner Wrasse is commonly referred to as the Cleaner Royal Wrasse. With its yellow front half and blue posterior half, it makes a captivating addition to any tank. The Hawaiian Cleaner Wrasse needs a tank  with plenty of live rocks for shelter. Cleaner Wrasse prefers a thick sand bed to burrow at night and usually forms a balloon-like, mucous cocoon, and spends the night resting within it, but will burrow as well.