The Bicolor Cleaner Wrasse is also known as cleaner Wrasses, Bicolored Cleanerfish, Two-color Cleaner Wrasse, Two-color Cleanerfish, Two-colored Cleaner Wrasse, Two-colored Cleanerfish, Cleanerfish and Yellow Diesel Wrasse. This fish has been the focus of many research studies and are most commonly sold. The Bicolor Cleaner Wrasse forms a great symbiotic relationship with other reef fish by cleaning them of their unwanted parasites. They are the peaceful attractive fish with a most intriguing "dance" that they perform to solicit other fishes to allow them to remove parasites and other debris from those fishes? body, fins, and mouths. Its size varies and reaches up to 4 inches in adults. Though the Bicolor Cleaner Wrasse is reef safe and peaceful, we recommend these fishes to opt only by experienced aquarists, as they are very difficult to keep. The Bicolor Cleaner Wrasse is carnivorous and is considered as obligatory feeder. It can be kept in an aquarium containing diverse population of fish along with a variety of ectoparasites, basically supplying enough natural foods to sustain the cleaners. We suggest you to provide them with finely chopped meaty foods such as shrimp, brine shrimp, squid. The Bicolor Cleaner Wrasse loves to sleep in crevices of rocks and therefore few live rocks are recommended to keep in an aquarium along with thick sand bed as they burrow into the substrate at night. It has the tendency to jump from the aquarium so we suggest you to keep them in a covered aquarium. It lives either singly or in pairs. It is very peaceful fish and also keeps other fishes parasite free. It starts its life as females, and then in a group the strongest female changes its sex and becomes male, and this occurrence is known as sequential hermaphroditism.