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 337 - 360 of 735 Tank Mates

Least Killifish (Heterandria) & Gymnogeophagus meridionalis

Heterandria formosa · Gymnogeophagus meridionalis

Possible with Caution

Least Killifish (Heterandria): PeacefulGymnogeophagus meridionalis: Semi-Aggressive

Least Killifish (Heterandria) & Half Banded Spiny Eel

Heterandria formosa · Macrognathus circumcinctus

Possible with Caution

Least Killifish (Heterandria): PeacefulHalf Banded Spiny Eel: Mostly Peaceful

Least Killifish (Heterandria) & Haplochromis sp. 44 (Thick Skin)

Heterandria formosa · Haplochromis sp. 44

Possible with Caution

Least Killifish (Heterandria): PeacefulHaplochromis sp. 44 (Thick Skin): Aggressive

Least Killifish (Heterandria) & Harlequin Rasbora

Heterandria formosa · Trigonostigma heteromorpha

Possible with Caution

Least Killifish (Heterandria): PeacefulHarlequin Rasbora: Peaceful

Least Killifish (Heterandria) & Harlequin Shark

Heterandria formosa · Labeo variegatus

Possible with Caution

Least Killifish (Heterandria): PeacefulHarlequin Shark: Aggressive

Least Killifish (Heterandria) & Head and Tail Light Tetra

Heterandria formosa · Hemigrammus ocellifer

Possible with Caution

Least Killifish (Heterandria): PeacefulHead and Tail Light Tetra: Peaceful

Least Killifish (Heterandria) & Helicopter Catfish

Heterandria formosa · Wallagonia leerii

Least Killifish (Heterandria) & Hi Fin Peppered Cory

Heterandria formosa · Scleromystax macropterus

Possible with Caution

Least Killifish (Heterandria): PeacefulHi Fin Peppered Cory: Peaceful

Least Killifish (Heterandria) & Highlands Rainbowfish

Heterandria formosa · Chilatherina campsi

Possible with Caution

Least Killifish (Heterandria): PeacefulHighlands Rainbowfish: Peaceful

Least Killifish (Heterandria) & Hillstream Loach

Heterandria formosa · Beaufortia leveretti

Possible with Caution

Least Killifish (Heterandria): PeacefulHillstream Loach: Peaceful

Least Killifish (Heterandria) & Honduran Red Point

Heterandria formosa · Amatitlania sp. 'Honduran Red Point'

Possible with Caution

Least Killifish (Heterandria): PeacefulHonduran Red Point: Semi-Aggressive

Least Killifish (Heterandria) & Honey Blue Eye

Heterandria formosa · Pseudomugil mellis

Possible with Caution

Least Killifish (Heterandria): PeacefulHoney Blue Eye: Peaceful

Least Killifish (Heterandria) & Honey Gourami

Heterandria formosa · Trichogaster chuna

Ideal Tank Mates

Least Killifish (Heterandria): PeacefulHoney Gourami: Peaceful

Least Killifish (Heterandria) & Hongsloi Apistogramma

Heterandria formosa · Apistogramma hongsloi

Possible with Caution

Least Killifish (Heterandria): PeacefulHongsloi Apistogramma: Semi-Aggressive

Least Killifish (Heterandria) & Horei Cichlid

Heterandria formosa · Ctenochromis horei

Least Killifish (Heterandria) & Horned Nerite Snail

Heterandria formosa · Clithon corona

Ideal Tank Mates

Least Killifish (Heterandria): PeacefulHorned Nerite Snail: Peaceful

Least Killifish (Heterandria) & Humpbacked Limia

Heterandria formosa · Limia nigrofasciata

Possible with Caution

Least Killifish (Heterandria): PeacefulHumpbacked Limia: Peaceful

Least Killifish (Heterandria) & Hystrix Stingray (Porcupine Ray)

Heterandria formosa · Potamotrygon hystrix

Least Killifish (Heterandria) & Incolicana Corydoras

Heterandria formosa · Corydoras incolicana

Possible with Caution

Least Killifish (Heterandria): PeacefulIncolicana Corydoras: Peaceful

Least Killifish (Heterandria) & Indian Glassfish

Heterandria formosa · Parambassis ranga

Possible with Caution

Least Killifish (Heterandria): PeacefulIndian Glassfish: Peaceful

Least Killifish (Heterandria) & Indonesian Datnoid (Tiger Fish)

Heterandria formosa · Datnioides microlepis

Least Killifish (Heterandria) & Indonesian Giant Snakehead

Heterandria formosa · Channa micropeltes

Least Killifish (Heterandria) & Intermedius Cichlid

Heterandria formosa · Tramitichromis intermedius

Possible with Caution

Least Killifish (Heterandria): PeacefulIntermedius Cichlid: Semi-Aggressive

Least Killifish (Heterandria) & Irian Jaya Rainbowfish

Heterandria formosa · Melanotaenia irianjaya

Possible with Caution

Least Killifish (Heterandria): PeacefulIrian Jaya Rainbowfish: Peaceful