Cleaner Wrasse (Labroides dimidiatus). There is much controversy over these cleaner fish. Most do not survive in captivity for extended periods. In our opinion, these fish should be sold at a high price so as only advanced aquarists will attempt to keep them. They are very beneficial in a stocked reef tank. The larger male (left) has lived in an aquarium for over six years. the female (right) is a new addition (three months). The pair spawn regularly in our display.