Red Eye Tetra
Moenkhausia sanctaefilomene

Care Level




Reef Compatible


Plant Safe


Max Size

Less than 2"

Minimum Tank Size

10 gallon


Black, Red, Silver, White



Water Conditions

Slightly acidic (6.0-7.5 pH), intermediate water hardness (3-12 dGH), 72 to 84 degrees Fahrenheit


General: The Red Eye Tetra (Moenkhausia sanctaefilomene) is a relatively hardy and peaceful small community species that will reach a length of three inches and live up to ten years in captivity. The Red Eye Tetra is widely distributed throughout Central and South American tributaries and is very adaptable to an extensive variety of ecological habitats. They can be found anywhere from clear-water streams, to turbid waters of the Amazon.

Fecundity: The Red Eye Tetra (Moenkhausia sanctaefilomene) is a prolific breeder within the hobby. It is very difficult to differentiate between male and female. For this reason, keeping Red Eye Tetra in large schools (ten or more) will give the best chance to have both males and females. Attempt to maintain a slightly acidic pH of 6.2, and a soft water hardness of 3 to 6 dGH.

Preferred Water Chemistry: Slightly acidic (6.0 to 7.5 pH), soft water hardness (3 to 12 dGH)

Aquarium Diet: Brine shrimp, baby brine shrimp, blackworms, general flakes, omnivore pellet, Spirulina

Compatibility: The Red Eye Tetra (Moenkhausia sanctaefilomene) is typically compatible with other Tetra, Danio, Rasbora, Rainbowfish, and South American Dwarf Cichlids (Ram, Apistogramma). The Red Eye Tetra is also compatible with Livebearers (Guppy, Swordtail, Platy).

Red Eye Tetra Photo Gallery

Red Eye Tetra Videos

Author: Aquatics Unlimited