school of red squirrelfish, sargocentron rubrum in a tropical coral reef of andaman sea

active also andaman animal aquatic are background beryciformes biodiversity color coral dive diving environment exotic family fauna fish fishes general holocentridae islands known large life marine member nature nocturnal ocean order red redcoat redstriped reef richelieu rock rubrum russet saltwater sargocentron scarlettailed school scuba sea similan soldier soldierfish squirrelfish surin thailand tropical undersea underwater usually water which wild wildlife