🐟 Red Eye Tetra Moenkhausia sanctaefilomenae

The Red Eye Tetra (Moenkhausia sanctaefilomenae) is a easy-care, semi-aggressive species from South America. Adults reach roughly 2.8", so plan on a minimum tank of 20 gallons. Keep the water between 72–80°F with a pH of 5.5–8.5. This is a schooling fish — keep a group of at least 6 so it feels secure and colors up. It tends to nip fins, so avoid slow, long-finned tankmates. As an omnivore, it does best on a varied diet appropriate to its feeding style.

At a glance

Good tankmates for Red Eye Tetra

Neon TetraCardinal TetraRummynose TetraBlack Skirt TetraSerpae TetraEndler's LivebearerPlatyMollySwordtailGerman Blue RamBolivian RamKribensisZebra DanioHarlequin RasboraCherry BarbTiger BarbRosy BarbWhite Cloud MinnowBronze CoryPanda CoryOtocinclusBristlenose PlecoKuhli LoachAmano ShrimpMystery SnailMarble HatchetfishBlack Neon TetraLemon TetraGlowlight TetraBloodfin TetraDiamond TetraBuenos Aires TetraEmperor TetraSilver Tip TetraX-Ray TetraLambchop RasboraScissortail RasboraPearl DanioGiant DanioGlowlight DanioGold BarbOdessa BarbDenison BarbCheckerboard BarbFive-Banded BarbBoesemani RainbowfishNeon Dwarf RainbowfishMadagascar RainbowfishCelebes RainbowfishHoney GouramiSparkling GouramiChocolate GouramiKeyhole CichlidFiremouth CichlidElectric Blue AcaraBlue AcaraRainbow CichlidYellow Lab CichlidAcei CichlidPeacock CichlidMultifasciatusJulidochromisPygmy CorySterbai CoryJulii CoryGlass CatfishUpside-Down CatfishYoyo LoachZebra LoachHillstream LoachRubber Lip PlecoClown PlecoSiamese Algae EaterRainbow SharkFlying FoxLeast KillifishRosy Red MinnowGhost ShrimpBamboo ShrimpRabbit SnailGold TetraPenguin TetraFlame TetraColombian TetraSilver DollarEmerald Eye RasboraLeopard DanioGold Ring DanioRuby BarbMelon BarbTurquoise RainbowfishRed RainbowfishLicorice GouramiCroaking GouramiStrawberry BettaGolden RamFlag AcaraFestivum CichlidYellow Dwarf CichlidElectric Yellow CichlidShell-DwellerEmerald CoryAlbino CoryThree-Striped CoryAdolfo's CoryHabrosus CoryZebra OtoDwarf Chain LoachLeopard Frog Pleco (L134)Zebra Pleco (L046)Vampire ShrimpRed Claw CrabClown KillifishRed SwordtailBalloon MollyAmerican FlagfishIndian Glassfish

Avoid these tankmates

AngelfishDiscusOscarJack DempseyGreen TerrorTexas CichlidFrontosaChinese Algae EaterBlack Ghost KnifefishRopefishSenegal BichirBucktooth TetraBanjar Red CichlidSalvini CichlidMidas CichlidFlowerhornVenustus CichlidLivingstonii CichlidCompressed CichlidCalvus Cichlid

See the full tankmate guide for Red Eye Tetra →