Least Killifish (Heterandria) Tank Mates & Compatibility

Least Killifish (Heterandria)

Heterandria formosa

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TemperamentPeaceful (1/10)

Adult Size3.5 cm

Temperature18–27°C

Water TypeBrackish Tolerant

Swim ZoneSurface, Mid-level, Bottom

StockingGroup of 3+

Showing 649 - 672 of 735 Tank Mates

Least Killifish (Heterandria) & Tailbar Cichlid

Heterandria formosa · Vieja hartwegi

Possible with Caution

Least Killifish (Heterandria): PeacefulTailbar Cichlid: Aggressive

Least Killifish (Heterandria) & Taiwan Reef Cichlid

Heterandria formosa · Protomelas sp. "Steveni Taiwan"

Possible with Caution

Least Killifish (Heterandria): PeacefulTaiwan Reef Cichlid: Semi-Aggressive

Least Killifish (Heterandria) & Tambraparni Barb

Heterandria formosa · Puntius tambraparniei

Possible with Caution

Least Killifish (Heterandria): PeacefulTambraparni Barb: Mostly Peaceful

Least Killifish (Heterandria) & Tami River Rainbowfish

Heterandria formosa · Glossolepis pseudoincisus

Possible with Caution

Least Killifish (Heterandria): PeacefulTami River Rainbowfish: Peaceful

Least Killifish (Heterandria) & Tandanus Catfish

Heterandria formosa · Tandanus tandanus

Least Killifish (Heterandria) & Tanganyikan Clown Cichlid (Eretmodus)

Heterandria formosa · Eretmodus cyanostictus

Possible with Caution

Least Killifish (Heterandria): PeacefulTanganyikan Clown Cichlid (Eretmodus): Aggressive

Least Killifish (Heterandria) & Teacup Stingray (Common Freshwater Ray)

Heterandria formosa · Potamotrygon laticeps

Least Killifish (Heterandria) & Telmatochromis brichardi

Heterandria formosa · Telmatochromis brichardi

Possible with Caution

Least Killifish (Heterandria): PeacefulTelmatochromis brichardi: Semi-Aggressive

Least Killifish (Heterandria) & Telmatochromis dhonti

Heterandria formosa · Telmatochromis dhonti

Possible with Caution

Least Killifish (Heterandria): PeacefulTelmatochromis dhonti: Aggressive

Least Killifish (Heterandria) & Tequila Splitfin

Heterandria formosa · Zoogoneticus tequila

Possible with Caution

Least Killifish (Heterandria): PeacefulTequila Splitfin: Semi-Aggressive

Least Killifish (Heterandria) & Teugelsi Bichir

Heterandria formosa · Polypterus teugelsi

Least Killifish (Heterandria) & Texas Cichlid

Heterandria formosa · Herichthys cyanoguttatus

Possible with Caution

Least Killifish (Heterandria): PeacefulTexas Cichlid: Aggressive

Least Killifish (Heterandria) & Thai Micro Crab

Heterandria formosa · Limnopilos naiyanetri

Ideal Tank Mates

Least Killifish (Heterandria): PeacefulThai Micro Crab: Peaceful

Least Killifish (Heterandria) & Thinbar Datnoid

Heterandria formosa · Datnioides undecimradiatus

Least Killifish (Heterandria) & Threadfin Acara

Heterandria formosa · Acarichthys heckelii

Possible with Caution

Least Killifish (Heterandria): PeacefulThreadfin Acara: Mostly Peaceful

Least Killifish (Heterandria) & Threadfin Rainbowfish

Heterandria formosa · Iriatherina werneri

Possible with Caution

Least Killifish (Heterandria): PeacefulThreadfin Rainbowfish: Peaceful

Least Killifish (Heterandria) & Three Spot Gourami (Blue/Gold/Opaline)

Heterandria formosa · Trichopodus trichopterus

Possible with Caution

Least Killifish (Heterandria): PeacefulThree Spot Gourami (Blue/Gold/Opaline): Semi-Aggressive

Least Killifish (Heterandria) & Three-Spot Torpedo Hap

Heterandria formosa · Exochochromis anagenys

Least Killifish (Heterandria) & Three-striped Dwarf Cichlid

Heterandria formosa · Apistogramma trifasciata

Possible with Caution

Least Killifish (Heterandria): PeacefulThree-striped Dwarf Cichlid: Mostly Peaceful

Least Killifish (Heterandria) & Tiger Barb

Heterandria formosa · Puntigrus tetrazona

Possible with Caution

Least Killifish (Heterandria): PeacefulTiger Barb: Semi-Aggressive

Least Killifish (Heterandria) & Tiger Danio

Heterandria formosa · Devario maetaengensis

Possible with Caution

Least Killifish (Heterandria): PeacefulTiger Danio: Peaceful

Least Killifish (Heterandria) & Tiger Loach

Heterandria formosa · Syncrossus hymenophysa

Possible with Caution

Least Killifish (Heterandria): PeacefulTiger Loach: Aggressive

Least Killifish (Heterandria) & Tiger Muskie

Heterandria formosa · Esox masquinongy x lucius

Least Killifish (Heterandria) & Tiger Pleco (L002)

Heterandria formosa · Panaqolus sp. L002

Ideal Tank Mates

Least Killifish (Heterandria): PeacefulTiger Pleco (L002): Mostly Peaceful