Discus (Symphysodon spp.)  Often called the “King of the Aquarium,” Discus are prized for their round shape and brilliant colors ranging from blues and reds to intricate patterns. They are peaceful, schooling cichlids that thrive in groups, preferring warm, soft, and very clean water. Discus need a spacious, well-maintained tank and a high-quality diet of pellets, frozen, and live foods to stay healthy and show their best colors. | Pet Zone Tropical Fish, San Diego, California | Facebook