The Red-Eye Tetra (Moenkhausia sanctaefilomenae) is a hardy, peaceful South American schooling fish with a silvery body and a distinct red eye. It is an active but not fast swimmer that thrives in groups of six or more and can be kept with other peaceful community fish. Red-eye tetras are omnivores, readily accepting flakes, pellets, and live or frozen foods, and are considered an excellent choice for beginner aquarists due to their resilience to a variety of water conditions.