What Is a Discus Fish?
Discus fish are a species of fish that are often seen in aquariums, and they have a reputation for two things: requiring an excessive amount of care and being excessively beautiful. For many hobbyists, this is a fair trade. Although Discus do require more time and attention than a school of tetras, it is arguable that their bold colors and large, graceful forms provide more than enough enjoyment for the effort.