🐌 Assassin Snail Clea helena

The Assassin Snail (Clea helena) is a easy-care, semi-aggressive species from Southeast Asia. Adults reach roughly 1", so plan on a minimum tank of 10 gallons. Keep the water between 70–80°F with a pH of 7–8. It does not school and can be kept singly or in species-appropriate numbers. As a carnivore, it does best on a varied diet appropriate to its feeding style.

At a glance

Good tankmates for Assassin Snail

Neon TetraSerpae TetraGuppyEndler's LivebearerZebra DanioHarlequin RasboraChili RasboraCherry BarbWhite Cloud MinnowPanda CoryOtocinclusCherry ShrimpAmano ShrimpNerite SnailMystery SnailMarble HatchetfishEmber TetraBlack Neon TetraLemon TetraGlowlight TetraBloodfin TetraDiamond TetraEmperor TetraSilver Tip TetraX-Ray TetraCelestial Pearl DanioLambchop RasboraGlowlight DanioCheckerboard BarbFive-Banded BarbThreadfin RainbowfishHoney GouramiSparkling GouramiMultifasciatusPygmy CoryJulii CoryLeast KillifishGhost ShrimpRamshorn SnailMalaysian Trumpet SnailGold TetraPenguin TetraFlame TetraGalaxy RasboraPhoenix RasboraEmerald Eye RasboraLeopard DanioGold Ring DanioForktail Blue-eyePeaceful BettaShell-DwellerAdolfo's CoryHabrosus CoryZebra OtoBlue Dream ShrimpYellow ShrimpBlack Diamond ShrimpBumblebee ShrimpLyretail KillifishClown Killifish

Avoid these tankmates

Betta (male)AngelfishDiscusConvict CichlidOscarPictus CatfishParadise FishJack DempseyGreen TerrorTexas CichlidDemasoni CichlidAuratus CichlidFrontosaChinese Algae EaterRed Tail SharkFigure-8 PufferBlack Ghost KnifefishAfrican Butterfly FishRopefishSenegal BichirGolden Wonder KillifishBucktooth TetraBanjar Red CichlidSalvini CichlidMidas CichlidFlowerhornRed Zebra CichlidVenustus CichlidLivingstonii CichlidCompressed CichlidCalvus CichlidTropheus DuboisiRed Claw Crab

See the full tankmate guide for Assassin Snail →