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 697 - 720 of 735 Tank Mates

Least Killifish (Heterandria) & Walking Catfish (Clarias)

Heterandria formosa · Clarias batrachus

Least Killifish (Heterandria) & Wami Tilapia (Redeye)

Heterandria formosa · Oreochromis hornorum

Possible with Caution

Least Killifish (Heterandria): PeacefulWami Tilapia (Redeye): Semi-Aggressive

Least Killifish (Heterandria) & Warmouth

Heterandria formosa · Lepomis gulosus

Least Killifish (Heterandria) & Weeksi Bichir

Heterandria formosa · Polypterus weeksii

Least Killifish (Heterandria) & Wels Catfish (European Catfish)

Heterandria formosa · Silurus glanis

Least Killifish (Heterandria) & West African Bichir

Heterandria formosa · Polypterus retropinnis

Least Killifish (Heterandria) & Western Rainbowfish

Heterandria formosa · Melanotaenia australis

Possible with Caution

Least Killifish (Heterandria): PeacefulWestern Rainbowfish: Peaceful

Least Killifish (Heterandria) & Whiptail Catfish

Heterandria formosa · Rineloricaria sp.

Ideal Tank Mates

Least Killifish (Heterandria): PeacefulWhiptail Catfish: Peaceful

Least Killifish (Heterandria) & Whisker Shrimp

Heterandria formosa · Macrobrachium sp.

Possible with Caution

Least Killifish (Heterandria): PeacefulWhisker Shrimp: Aggressive

Least Killifish (Heterandria) & White Cheeked Goby

Heterandria formosa · Rhinogobius duospilus

Possible with Caution

Least Killifish (Heterandria): PeacefulWhite Cheeked Goby: Mostly Peaceful

Least Killifish (Heterandria) & White Cichlid

Heterandria formosa · Vieja argentea

Possible with Caution

Least Killifish (Heterandria): PeacefulWhite Cichlid: Aggressive

Least Killifish (Heterandria) & White Cloud Mountain Minnow

Heterandria formosa · Tanichthys albonubes

Possible with Caution

Least Killifish (Heterandria): PeacefulWhite Cloud Mountain Minnow: Peaceful

Least Killifish (Heterandria) & White Saum (Green Terror)

Heterandria formosa · Andinoacara stalsbergi

Least Killifish (Heterandria) & White Top Hara (Gallireya Reef)

Heterandria formosa · Cynotilapia sp. 'hara'

Possible with Caution

Least Killifish (Heterandria): PeacefulWhite Top Hara (Gallireya Reef): Aggressive

Least Killifish (Heterandria) & Whiteseam Fighter

Heterandria formosa · Betta albimarginata

Least Killifish (Heterandria) & Wolf Cichlid

Heterandria formosa · Parachromis dovii

Least Killifish (Heterandria) & Wolf Fish

Heterandria formosa · Hoplias malabaricus

Least Killifish (Heterandria) & Wrestling Halfbeak

Heterandria formosa · Dermogenys pusilla

Possible with Caution

Least Killifish (Heterandria): PeacefulWrestling Halfbeak: Mostly Peaceful

Least Killifish (Heterandria) & X-Ray Tetra (Pristella)

Heterandria formosa · Pristella maxillaris

Possible with Caution

Least Killifish (Heterandria): PeacefulX-Ray Tetra (Pristella): Peaceful

Least Killifish (Heterandria) & Xenotilapia ochrogenys

Heterandria formosa · Xenotilapia ochrogenys

Possible with Caution

Least Killifish (Heterandria): PeacefulXenotilapia ochrogenys: Mostly Peaceful

Least Killifish (Heterandria) & Xenotilapia papilio

Heterandria formosa · Xenotilapia papilio

Possible with Caution

Least Killifish (Heterandria): PeacefulXenotilapia papilio: Semi-Aggressive

Least Killifish (Heterandria) & Yellow Acara

Heterandria formosa · Aequidens metae

Possible with Caution

Least Killifish (Heterandria): PeacefulYellow Acara: Semi-Aggressive

Least Killifish (Heterandria) & Yellow Bullhead Catfish

Heterandria formosa · Ameiurus natalis

Least Killifish (Heterandria) & Yellow Convict

Heterandria formosa · Cryptoheros nanoluteus

Possible with Caution

Least Killifish (Heterandria): PeacefulYellow Convict: Semi-Aggressive