🦐 Red Claw Crab Perisesarma bidens

The Red Claw Crab (Perisesarma bidens) is a moderate-care, semi-aggressive species from Southeast Asia (brackish). Adults reach roughly 2.5", so plan on a minimum tank of 20 gallons. Keep the water between 72–82°F with a pH of 7.5–8.5. It does not school and can be kept singly or in species-appropriate numbers. It is predatory and will eat fish small enough to fit in its mouth. As an omnivore, it does best on a varied diet appropriate to its feeding style.

At a glance

Good tankmates for Red Claw Crab

Black Skirt TetraPlatyMollySwordtailBolivian RamApistogrammaKribensisTiger BarbRosy BarbDwarf GouramiPearl GouramiThree-Spot GouramiBronze CoryBristlenose PlecoCongo TetraDiamond TetraBuenos Aires TetraScissortail RasboraPearl DanioGiant DanioGold BarbOdessa BarbDenison BarbBoesemani RainbowfishNeon Dwarf RainbowfishMadagascar RainbowfishCelebes RainbowfishKeyhole CichlidFiremouth CichlidElectric Blue AcaraRainbow CichlidYellow Lab CichlidAcei CichlidPeacock CichlidJulidochromisSterbai CoryGlass CatfishUpside-Down CatfishYoyo LoachZebra LoachHillstream LoachRubber Lip PlecoClown PlecoSiamese Algae EaterRainbow SharkFlying FoxRosy Red MinnowBamboo ShrimpRabbit SnailPenguin TetraRed Eye TetraColombian TetraSilver DollarMelon BarbTurquoise RainbowfishRed RainbowfishCroaking GouramiThick-Lipped GouramiFlag AcaraFestivum CichlidYellow Dwarf CichlidElectric Yellow CichlidBrichardiEmerald CoryAlbino CoryThree-Striped CoryDwarf Chain LoachZebra Pleco (L046)Vampire ShrimpRed SwordtailHigh-Fin PlatyBalloon MollySailfin MollyAmerican FlagfishIndian Glassfish

Avoid these tankmates

AngelfishConvict CichlidOscarChili RasboraPictus CatfishCherry ShrimpNerite SnailEmber TetraGreen Neon TetraCelestial Pearl DanioLambchop RasboraGlowlight DanioJack DempseyGreen TerrorTexas CichlidAuratus CichlidFrontosaPygmy CoryChinese Algae EaterRed Tail SharkBlack Ghost KnifefishRopefishSenegal BichirLeast KillifishCrystal Red ShrimpAssassin SnailRamshorn SnailMalaysian Trumpet SnailBucktooth TetraGalaxy RasboraPhoenix RasboraAxelrod's RasboraBanjar Red CichlidSalvini CichlidMidas CichlidFlowerhornRed Zebra CichlidVenustus CichlidLivingstonii CichlidCompressed CichlidCalvus CichlidTropheus DuboisiHabrosus CoryBlue Dream ShrimpYellow ShrimpBlack Diamond ShrimpBumblebee Shrimp

See the full tankmate guide for Red Claw Crab →