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 529 - 552 of 735 Tank Mates

Least Killifish (Heterandria) & Pungas Catfish

Heterandria formosa · Pangasius pangasius

Least Killifish (Heterandria) & Purple Spotted Gudgeon

Heterandria formosa · Mogurnda adspersa

Least Killifish (Heterandria) & Purple Zebra Shrimp

Heterandria formosa · Potamalpheops sp.

Ideal Tank Mates

Least Killifish (Heterandria): PeacefulPurple Zebra Shrimp: Peaceful

Least Killifish (Heterandria) & Pygmy Corydoras

Heterandria formosa · Corydoras pygmaeus

Possible with Caution

Least Killifish (Heterandria): PeacefulPygmy Corydoras: Peaceful

Least Killifish (Heterandria) & Pygmy Rainbowfish

Heterandria formosa · Melanotaenia pygmaea

Possible with Caution

Least Killifish (Heterandria): PeacefulPygmy Rainbowfish: Mostly Peaceful

Least Killifish (Heterandria) & Rachov's Killifish (Annual)

Heterandria formosa · Nothobranchius rachovii

Possible with Caution

Least Killifish (Heterandria): PeacefulRachov's Killifish (Annual): Mostly Peaceful

Least Killifish (Heterandria) & Rainbow Cichlid

Heterandria formosa · Herotilapia multispinosa

Possible with Caution

Least Killifish (Heterandria): PeacefulRainbow Cichlid: Mostly Peaceful

Least Killifish (Heterandria) & Rainbow Shark

Heterandria formosa · Epalzeorhynchos frenatum

Possible with Caution

Least Killifish (Heterandria): PeacefulRainbow Shark: Aggressive

Least Killifish (Heterandria) & Rainbow Snakehead

Heterandria formosa · Channa bleheri

Least Killifish (Heterandria) & Ramshorn Snail

Heterandria formosa · Planorbidae fam.

Ideal Tank Mates

Least Killifish (Heterandria): PeacefulRamshorn Snail: Peaceful

Least Killifish (Heterandria) & Ramu Rainbowfish

Heterandria formosa · Glossolepis ramuensis

Possible with Caution

Least Killifish (Heterandria): PeacefulRamu Rainbowfish: Mostly Peaceful

Least Killifish (Heterandria) & Raspy River Stingray

Heterandria formosa · Potamotrygon scobina

Least Killifish (Heterandria) & Red Bellied Pacu

Heterandria formosa · Piaractus brachypomus

Possible with Caution

Least Killifish (Heterandria): PeacefulRed Bellied Pacu: Mostly Peaceful

Least Killifish (Heterandria) & Red Breasted Acara

Heterandria formosa · Laetacara dorsigera

Possible with Caution

Least Killifish (Heterandria): PeacefulRed Breasted Acara: Mostly Peaceful

Least Killifish (Heterandria) & Red Devil Cichlid

Heterandria formosa · Amphilophus labiatus

Least Killifish (Heterandria) & Red Dwarf Rasbora

Heterandria formosa · Microrasbora rubescens

Possible with Caution

Least Killifish (Heterandria): PeacefulRed Dwarf Rasbora: Peaceful

Least Killifish (Heterandria) & Red Empress

Heterandria formosa · Protomelas taeniolatus

Possible with Caution

Least Killifish (Heterandria): PeacefulRed Empress: Semi-Aggressive

Least Killifish (Heterandria) & Red Eye Tetra

Heterandria formosa · Moenkhausia sanctaefilomenae

Possible with Caution

Least Killifish (Heterandria): PeacefulRed Eye Tetra: Mostly Peaceful

Least Killifish (Heterandria) & Red Fin Borleyi

Heterandria formosa · Copadichromis borleyi

Possible with Caution

Least Killifish (Heterandria): PeacefulRed Fin Borleyi: Semi-Aggressive

Least Killifish (Heterandria) & Red Fin Caudopunk

Heterandria formosa · Neolamprologus caudopunctatus

Possible with Caution

Least Killifish (Heterandria): PeacefulRed Fin Caudopunk: Semi-Aggressive

Least Killifish (Heterandria) & Red Goldflake Shrimp

Heterandria formosa · Caridina sp. Red Goldflake

Possible with Caution

Least Killifish (Heterandria): PeacefulRed Goldflake Shrimp: Peaceful

Least Killifish (Heterandria) & Red Head Tapajos (Geophagus)

Heterandria formosa · Geophagus sp. 'Red Head Tapajos'

Possible with Caution

Least Killifish (Heterandria): PeacefulRed Head Tapajos (Geophagus): Mostly Peaceful

Least Killifish (Heterandria) & Red Hump Eartheater

Heterandria formosa · Geophagus steindachneri

Possible with Caution

Least Killifish (Heterandria): PeacefulRed Hump Eartheater: Semi-Aggressive

Least Killifish (Heterandria) & Red Peacock (Ruby Red)

Heterandria formosa · Aulonocara sp. 'Rubescens'

Possible with Caution

Least Killifish (Heterandria): PeacefulRed Peacock (Ruby Red): Semi-Aggressive