The discus fish are also known under the name discus cichlids or Symphysodon. Their genus belongs to the family of cichlids and is therefore part of the order Perciformes. Its natural habitat is the Amazon River system in tropical South America. The anatomical features of the discus fish include its shallow, high body, the rounded dorsal and anal fins, and the so-called symphysis, the seam between the two pines, which carries some unicuspid teeth. Discus fish are characterized by their calm demeanor and often prefer temperatures from 28 to 32 ° C. They are available depending on the type in sizes between 15 and 18cm.