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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 289 - 312 of 735 Tank Mates

Least Killifish (Heterandria) & Freshwater Barracuda

Heterandria formosa · Ctenolucius hujeta

Not Recommended
Least Killifish (Heterandria): PeacefulFreshwater Barracuda: Semi-Aggressive

Least Killifish (Heterandria) & Freshwater Flounder

Heterandria formosa · Trinectes maculatus

Possible with Caution
Least Killifish (Heterandria): PeacefulFreshwater Flounder: Peaceful

Least Killifish (Heterandria) & Freshwater Harlequin Shrimp (Sulawesi)

Heterandria formosa · Caridina cf. spongicola

Possible with Caution
Least Killifish (Heterandria): PeacefulFreshwater Harlequin Shrimp (Sulawesi): Peaceful

Least Killifish (Heterandria) & Freshwater Shark (Wallago)

Heterandria formosa · Wallago attu

Not Recommended
Least Killifish (Heterandria): PeacefulFreshwater Shark (Wallago): Highly Aggressive

Least Killifish (Heterandria) & Freshwater Sole

Heterandria formosa · Brachirus selheimi

Not Recommended
Least Killifish (Heterandria): PeacefulFreshwater Sole: Mostly Peaceful

Least Killifish (Heterandria) & Freshwater Toadfish (Prehistoric Monster Fish)

Heterandria formosa · Thalassophryne amazonica

Not Recommended
Least Killifish (Heterandria): PeacefulFreshwater Toadfish (Prehistoric Monster Fish): Aggressive

Least Killifish (Heterandria) & Frogmouth Catfish

Heterandria formosa · Chaca chaca

Not Recommended
Least Killifish (Heterandria): PeacefulFrogmouth Catfish: Aggressive

Least Killifish (Heterandria) & Frontosa

Heterandria formosa · Cyphotilapia frontosa

Not Recommended
Least Killifish (Heterandria): PeacefulFrontosa: Semi-Aggressive

Least Killifish (Heterandria) & Fuelleborn's Cichlid

Heterandria formosa · Labeotropheus fuelleborni

Possible with Caution
Least Killifish (Heterandria): PeacefulFuelleborn's Cichlid: Aggressive

Least Killifish (Heterandria) & Gangetic Leaf Fish

Heterandria formosa · Nandus nandus

Not Recommended
Least Killifish (Heterandria): PeacefulGangetic Leaf Fish: Aggressive

Least Killifish (Heterandria) & Gardner's Killifish

Heterandria formosa · Fundulopanchax gardneri

Possible with Caution
Least Killifish (Heterandria): PeacefulGardner's Killifish: Mostly Peaceful

Least Killifish (Heterandria) & Garnet Tetra

Heterandria formosa · Hemigrammus pulcher

Possible with Caution
Least Killifish (Heterandria): PeacefulGarnet Tetra: Peaceful

Least Killifish (Heterandria) & Geophagus Orange Head Tapajos

Heterandria formosa · Geophagus sp. 'Orange Head'

Possible with Caution
Least Killifish (Heterandria): PeacefulGeophagus Orange Head Tapajos: Mostly Peaceful

Least Killifish (Heterandria) & German Blue Ram

Heterandria formosa · Mikrogeophagus ramirezi

Possible with Caution
Least Killifish (Heterandria): PeacefulGerman Blue Ram: Mostly Peaceful

Least Killifish (Heterandria) & Gertrude's Spotted Blue-eye

Heterandria formosa · Pseudomugil gertrudae

Possible with Caution
Least Killifish (Heterandria): PeacefulGertrude's Spotted Blue-eye: Peaceful

Least Killifish (Heterandria) & Ghost Shrimp

Heterandria formosa · Palaemonetes paludosus

Possible with Caution
Least Killifish (Heterandria): PeacefulGhost Shrimp: Peaceful

Least Killifish (Heterandria) & Giant Danio

Heterandria formosa · Devario aequipinnatus

Possible with Caution
Least Killifish (Heterandria): PeacefulGiant Danio: Mostly Peaceful

Least Killifish (Heterandria) & Giant Gourami

Heterandria formosa · Osphronemus goramy

Possible with Caution
Least Killifish (Heterandria): PeacefulGiant Gourami: Semi-Aggressive

Least Killifish (Heterandria) & Giant Whiptail Catfish

Heterandria formosa · Proloricaria prolixa

Possible with Caution
Least Killifish (Heterandria): PeacefulGiant Whiptail Catfish: Peaceful

Least Killifish (Heterandria) & Glass Bloodfin Tetra

Heterandria formosa · Prionobrama filigera

Possible with Caution
Least Killifish (Heterandria): PeacefulGlass Bloodfin Tetra: Peaceful

Least Killifish (Heterandria) & Glass Catfish

Heterandria formosa · Kryptopterus vitreolus

Possible with Caution
Least Killifish (Heterandria): PeacefulGlass Catfish: Peaceful

Least Killifish (Heterandria) & Glowlight Danio

Heterandria formosa · Danio choprae

Possible with Caution
Least Killifish (Heterandria): PeacefulGlowlight Danio: Peaceful

Least Killifish (Heterandria) & Glowlight Tetra

Heterandria formosa · Hemigrammus erythrozonus

Ideal Tank Mates
Least Killifish (Heterandria): PeacefulGlowlight Tetra: Peaceful

Least Killifish (Heterandria) & Goby Pleco (Pitbull Pleco)

Heterandria formosa · Parotocinclus jumbo

Ideal Tank Mates
Least Killifish (Heterandria): PeacefulGoby Pleco (Pitbull Pleco): Peaceful