The Jansen Saddle Wrasse is also known as the Saddleback Wrasse or Jansen's Wrasse. As an adult, it has a light blue to white body with five to six vertical dark, thick stripes that are bordered in yellow. These vertical stripes develop and spread apart as the fish matures. They are a beautiful species that makes a wonderful addition to a semi to aggressive saltwater fish only aquarium.
It should reside in a 75-gallon or larger aquarium with larger, aggressive tank mates, and plenty of live rock for hiding. It will become territorial and harass any new additions and it should be one of the last additions to the aquarium. It may be kept with a mate if the aquarium is 125 gallons or larger. It may eat mantis shrimp and bristleworms.
The Jansen Saddle Wrasse diet should include vitamin enriched frozen mysis shrimp, vitamin enriched frozen brine shrimp, and other meaty foods along with a high quality marine flake and marine pellet food.
Source: Live Aquaria