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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 145 - 168 of 735 Tank Mates

Least Killifish (Heterandria) & Buccochromis lepturus

Heterandria formosa · Buccochromis lepturus

Not Recommended
Least Killifish (Heterandria): PeacefulBuccochromis lepturus: Semi-Aggressive

Least Killifish (Heterandria) & Buccochromis rhoadesii

Heterandria formosa · Buccochromis rhoadesii

Not Recommended
Least Killifish (Heterandria): PeacefulBuccochromis rhoadesii: Aggressive

Least Killifish (Heterandria) & Bucktooth Tetra (Exodon)

Heterandria formosa · Exodon paradoxus

Not Recommended
Least Killifish (Heterandria): PeacefulBucktooth Tetra (Exodon): Highly Aggressive

Least Killifish (Heterandria) & Buenos Aires Tetra

Heterandria formosa · Hyphessobrycon anisitsi

Possible with Caution
Least Killifish (Heterandria): PeacefulBuenos Aires Tetra: Semi-Aggressive

Least Killifish (Heterandria) & Buettikoferi Bichir

Heterandria formosa · Polypterus palmas buettikoferi

Not Recommended
Least Killifish (Heterandria): PeacefulBuettikoferi Bichir: Semi-Aggressive

Least Killifish (Heterandria) & Buffalo Head Cichlid

Heterandria formosa · Steatocranus casuarius

Possible with Caution
Least Killifish (Heterandria): PeacefulBuffalo Head Cichlid: Semi-Aggressive

Least Killifish (Heterandria) & Bullseye Catfish

Heterandria formosa · Horabagrus brachysoma

Not Recommended
Least Killifish (Heterandria): PeacefulBullseye Catfish: Semi-Aggressive

Least Killifish (Heterandria) & Bullseye Snakehead

Heterandria formosa · Channa marulius

Not Recommended
Least Killifish (Heterandria): PeacefulBullseye Snakehead: Highly Aggressive

Least Killifish (Heterandria) & Bulolo Rainbowfish

Heterandria formosa · Chilatherina bulolo

Possible with Caution
Least Killifish (Heterandria): PeacefulBulolo Rainbowfish: Peaceful

Least Killifish (Heterandria) & Bumblebee Catfish (South American)

Heterandria formosa · Microglanis iheringi

Not Recommended
Least Killifish (Heterandria): PeacefulBumblebee Catfish (South American): Mostly Peaceful

Least Killifish (Heterandria) & Bumblebee Cichlid

Heterandria formosa · Pseudotropheus crabro

Possible with Caution
Least Killifish (Heterandria): PeacefulBumblebee Cichlid: Aggressive

Least Killifish (Heterandria) & Bumblebee Goby (Brackish)

Heterandria formosa · Brachygobius xanthozonus

Possible with Caution
Least Killifish (Heterandria): PeacefulBumblebee Goby (Brackish): Mostly Peaceful

Least Killifish (Heterandria) & Butterfly Goodeid

Heterandria formosa · Ameca splendens

Possible with Caution
Least Killifish (Heterandria): PeacefulButterfly Goodeid: Semi-Aggressive

Least Killifish (Heterandria) & Butterfly Peacock Cichlid

Heterandria formosa · Aulonocara jacobfreibergi

Possible with Caution
Least Killifish (Heterandria): PeacefulButterfly Peacock Cichlid: Semi-Aggressive

Least Killifish (Heterandria) & Butterfly Pleco (L168)

Heterandria formosa · Dekeyseria brachyura

Possible with Caution
Least Killifish (Heterandria): PeacefulButterfly Pleco (L168): Peaceful

Least Killifish (Heterandria) & Cairns Rainbowfish

Heterandria formosa · Cairnsichthys rhombosomoides

Possible with Caution
Least Killifish (Heterandria): PeacefulCairns Rainbowfish: Peaceful

Least Killifish (Heterandria) & Candy Striped Pleco (L015)

Heterandria formosa · Peckoltia vittata

Possible with Caution
Least Killifish (Heterandria): PeacefulCandy Striped Pleco (L015): Mostly Peaceful

Least Killifish (Heterandria) & Cardinal Shrimp (Sulawesi)

Heterandria formosa · Caridina dennerli

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

Least Killifish (Heterandria) & Cardinal Tetra

Heterandria formosa · Paracheirodon axelrodi

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

Least Killifish (Heterandria) & Celebes Halfbeak

Heterandria formosa · Nomorhamphus liemi

Possible with Caution
Least Killifish (Heterandria): PeacefulCelebes Halfbeak: Mostly Peaceful

Least Killifish (Heterandria) & Celebes Rainbowfish

Heterandria formosa · Marosatherina ladigesi

Possible with Caution
Least Killifish (Heterandria): PeacefulCelebes Rainbowfish: Peaceful

Least Killifish (Heterandria) & Celestial Pearl Danio (Galaxy Rasbora)

Heterandria formosa · Danio margaritatus

Ideal Tank Mates
Least Killifish (Heterandria): PeacefulCelestial Pearl Danio (Galaxy Rasbora): Peaceful

Least Killifish (Heterandria) & Ceylon Puffer (Brackish)

Heterandria formosa · Dichotomyctere fluviatilis

Possible with Caution
Least Killifish (Heterandria): PeacefulCeylon Puffer (Brackish): Aggressive

Least Killifish (Heterandria) & Chanchito

Heterandria formosa · Australoheros facetus

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