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 577 - 600 of 735 Tank Mates

Least Killifish (Heterandria) & Rhomb Barb

Heterandria formosa · Desmopuntius rhomboocellatus

Possible with Caution

Least Killifish (Heterandria): PeacefulRhomb Barb: Peaceful

Least Killifish (Heterandria) & Riffle Shrimp

Heterandria formosa · Australatya striolata

Possible with Caution

Least Killifish (Heterandria): PeacefulRiffle Shrimp: Peaceful

Least Killifish (Heterandria) & Rio Negro Dwarf Cichlid

Heterandria formosa · Ivanacara adoketa

Least Killifish (Heterandria) & Rose Danio

Heterandria formosa · Danio roseus

Possible with Caution

Least Killifish (Heterandria): PeacefulRose Danio: Peaceful

Least Killifish (Heterandria) & Rosy Barb

Heterandria formosa · Pethia conchonius

Possible with Caution

Least Killifish (Heterandria): PeacefulRosy Barb: Mostly Peaceful

Least Killifish (Heterandria) & Rosy Finned Tetra

Heterandria formosa · Hyphessobrycon rosaceus

Possible with Caution

Least Killifish (Heterandria): PeacefulRosy Finned Tetra: Peaceful

Least Killifish (Heterandria) & Rosy Red Minnow / Fathead Minnow

Heterandria formosa · Pimephales promelas

Possible with Caution

Least Killifish (Heterandria): PeacefulRosy Red Minnow / Fathead Minnow: Peaceful

Least Killifish (Heterandria) & Royal Farlowella Catfish

Heterandria formosa · Sturisoma panamense

Ideal Tank Mates

Least Killifish (Heterandria): PeacefulRoyal Farlowella Catfish: Peaceful

Least Killifish (Heterandria) & Royal Pleco (L190)

Heterandria formosa · Panaque nigrolineatus

Possible with Caution

Least Killifish (Heterandria): PeacefulRoyal Pleco (L190): Semi-Aggressive

Least Killifish (Heterandria) & Ruby Green Hap

Heterandria formosa · Haplochromis sp. 'Ruby Green'

Possible with Caution

Least Killifish (Heterandria): PeacefulRuby Green Hap: Aggressive

Least Killifish (Heterandria) & Rummy-Nose Tetra

Heterandria formosa · Hemigrammus rhodostomus

Possible with Caution

Least Killifish (Heterandria): PeacefulRummy-Nose Tetra: Peaceful

Least Killifish (Heterandria) & Rummynose Rasbora

Heterandria formosa · Sawbwa resplendens

Possible with Caution

Least Killifish (Heterandria): PeacefulRummynose Rasbora: Peaceful

Least Killifish (Heterandria) & Rusty Cichlid

Heterandria formosa · Iodotropheus sprengerae

Possible with Caution

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

Least Killifish (Heterandria) & Saddled Bichir

Heterandria formosa · Polypterus endlicheri

Least Killifish (Heterandria) & Sailfin Molly

Heterandria formosa · Poecilia latipinna

Possible with Caution

Least Killifish (Heterandria): PeacefulSailfin Molly: Mostly Peaceful

Least Killifish (Heterandria) & Sajica Cichlid (T-Bar Cichlid)

Heterandria formosa · Amatitlania sajica

Possible with Caution

Least Killifish (Heterandria): PeacefulSajica Cichlid (T-Bar Cichlid): Semi-Aggressive

Least Killifish (Heterandria) & Salvini Cichlid

Heterandria formosa · Trichromis salvini

Least Killifish (Heterandria) & San Juan Cory

Heterandria formosa · Corydoras bilineatus

Possible with Caution

Least Killifish (Heterandria): PeacefulSan Juan Cory: Peaceful

Least Killifish (Heterandria) & Saulosi Cichlid

Heterandria formosa · Chindongo saulosi

Possible with Caution

Least Killifish (Heterandria): PeacefulSaulosi Cichlid: Aggressive

Least Killifish (Heterandria) & Scarlet Badis

Heterandria formosa · Dario dario

Possible with Caution

Least Killifish (Heterandria): PeacefulScarlet Badis: Mostly Peaceful

Least Killifish (Heterandria) & Scat (Brackish)

Heterandria formosa · Scatophagus argus

Possible with Caution

Least Killifish (Heterandria): PeacefulScat (Brackish): Mostly Peaceful

Least Killifish (Heterandria) & Schwartz's Cory

Heterandria formosa · Corydoras schwartzi

Possible with Caution

Least Killifish (Heterandria): PeacefulSchwartz's Cory: Peaceful

Least Killifish (Heterandria) & Scissortail Rasbora

Heterandria formosa · Rasbora trilineata

Possible with Caution

Least Killifish (Heterandria): PeacefulScissortail Rasbora: Peaceful

Least Killifish (Heterandria) & Senegal Bichir

Heterandria formosa · Polypterus senegalus