The general body length of the gills is about 20CM, but there are a few larger ones that can grow up to 60CM. After understanding how big the gills grow, let's take a look at its living habits.

The gills mainly feed on the algae membranes of seaweeds growing on rocks, and live in In the waters between 6-50 meters in the slope of the clear reef area. Adults usually live alone or in pairs in areas below 30 m, while juveniles live in sheltered shallow reef areas at a depth of 3 m, often among soft corals.