Red Eye Tetra Care Guide
Moenkhausia sanctaefilomenae · Freshwater Fish
What Red Eye Tetra look like
Moenkhausia sanctaefilomenae, commonly known as the Red Eye Tetra, exhibits a medium-sized, laterally compressed body that typically reaches a maximum adult size of approximately 2.5 to 3 inches (6.4 to 7.6 cm). The species is characterized by its striking silver body, which is complemented by a vivid red coloration on the upper half of the eye, serving as a distinguishing feature. A bold black patch is present at the base of the caudal fin, enhancing its visual appeal. The scales possess a subtle greenish iridescent sheen, contributing to its overall aesthetic. The body is moderately deep, which is typical for members of the Characidae family. While sexual dimorphism is not pronounced, males may exhibit slightly more vibrant coloration compared to females. Defensive adaptations include a schooling behavior that provides safety in numbers, and the presence of a lateral line system that aids in detecting movement and vibrations in the water. The fins are well-developed, with a standard dorsal fin positioned towards the rear, contributing to its agile swimming capabilities.
Behavior & temperament
The Red Eye Tetra is a social fish that thrives in schools, exhibiting a strong preference for group living which enhances its safety from predators. It typically occupies the mid to upper levels of the water column, displaying active swimming behavior. In terms of breeding, this species is an egg scatterer, releasing eggs in open water during spawning, which occurs in the presence of suitable environmental cues. The temperament of the Red Eye Tetra is generally peaceful, making it an excellent addition to community aquariums. However, they may display mild territoriality during breeding periods. Their social hierarchy is relatively egalitarian, with no strict dominance among individuals, although larger or more assertive fish may occasionally establish a temporary pecking order.
Diet & feeding
In the wild, the Red Eye Tetra is an omnivore, feeding on a varied diet that includes small invertebrates, plant matter, and detritus. In captivity, it requires a balanced diet consisting of high-quality flake food, supplemented with live or frozen foods such as brine shrimp and daphnia to ensure optimal health and coloration.
Behind the name
Moenkhausia (named after the German zoologist Karl Moenkhaus); sanctaefilomenae (from Latin, meaning 'of Saint Philomena').
Plan your tank
Check the numbers before you buy: tank volume, a stocking plan, cycle progress, water changes, and your ongoing care routine.
Keeping Red Eye Tetra?
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