I find Wikipedia a great data base giving information which no other encyclopedia would give.
I do my bit when somebody tries to mutilate (not edit) an article by, for instance, deleting whole paragraphs or links just because he/she does not like it.
The royal angelfish (Pygoplites diacanthus) is a fish in the marine angelfish family, Pomacanthidae. It is found in tropical seas, including the Red Sea and the Indian Ocean around East Africa and the Maldives, the Tuamotus, New Caledonia, and the Great Barrier Reef. It is also found around Taiwan and islands off the coast of Japan. The royal angelfish has a maximum length of 25.0 centimetres (9.8 inches), with coloration varying by region. A commonality is that the body is edged in narrow blue-white and orange stripes that are narrow and angle backward. It is a carnivorous species, feeding on sponges and tunicates, and resides in coral-rich areas of lagoons and reefs as well as in the vicinity of caves. This royal angelfish was photographed in Ras Muhammad National Park on the Sinai Peninsula in Egypt.Photograph credit: Diego Delso