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 49 - 72 of 735 Tank Mates

Least Killifish (Heterandria) & Apistogramma baenschi (Inca 50)

Heterandria formosa · Apistogramma baenschi

Least Killifish (Heterandria) & Apistogramma borellii (Umbrella Cichlid)

Heterandria formosa · Apistogramma borellii

Possible with Caution

Least Killifish (Heterandria): PeacefulApistogramma borellii (Umbrella Cichlid): Mostly Peaceful

Least Killifish (Heterandria) & Apistogramma elizabethae

Heterandria formosa · Apistogramma elizabethae

Least Killifish (Heterandria) & Apistogramma macmasteri

Heterandria formosa · Apistogramma macmasteri

Possible with Caution

Least Killifish (Heterandria): PeacefulApistogramma macmasteri: Semi-Aggressive

Least Killifish (Heterandria) & Apistogramma panduro

Heterandria formosa · Apistogramma panduro

Least Killifish (Heterandria) & Apistogramma uaupesi

Heterandria formosa · Apistogramma uaupesi

Least Killifish (Heterandria) & Apistogramma viejita

Heterandria formosa · Apistogramma viejita

Possible with Caution

Least Killifish (Heterandria): PeacefulApistogramma viejita: Semi-Aggressive

Least Killifish (Heterandria) & Apple Snail

Heterandria formosa · Pomacea maculata

Possible with Caution

Least Killifish (Heterandria): PeacefulApple Snail: Peaceful

Least Killifish (Heterandria) & Arapaima

Heterandria formosa · Arapaima gigas

Least Killifish (Heterandria) & Arfak Rainbowfish

Heterandria formosa · Melanotaenia arfakensis

Possible with Caution

Least Killifish (Heterandria): PeacefulArfak Rainbowfish: Peaceful

Least Killifish (Heterandria) & Arrowhead Puffer

Heterandria formosa · Pao suvattii

Least Killifish (Heterandria) & Arulius Barb

Heterandria formosa · Dawkinsia arulius

Possible with Caution

Least Killifish (Heterandria): PeacefulArulius Barb: Mostly Peaceful

Least Killifish (Heterandria) & Asher Cory

Heterandria formosa · Corydoras tukano

Possible with Caution

Least Killifish (Heterandria): PeacefulAsher Cory: Peaceful

Least Killifish (Heterandria) & Asian Arowana

Heterandria formosa · Scleropages formosus

Least Killifish (Heterandria) & Asian Upside Down Catfish

Heterandria formosa · Mystus leucophasis

Least Killifish (Heterandria) & Assassin Snail

Heterandria formosa · Anentome helena

Ideal Tank Mates

Least Killifish (Heterandria): PeacefulAssassin Snail: Peaceful

Least Killifish (Heterandria) & Auratus Cichlid (Mbuna)

Heterandria formosa · Melanochromis auratus

Possible with Caution

Least Killifish (Heterandria): PeacefulAuratus Cichlid (Mbuna): Highly Aggressive

Least Killifish (Heterandria) & Aurora Yellow Mbuna

Heterandria formosa · Metriaclima sp. "Aurora Yellow"

Possible with Caution

Least Killifish (Heterandria): PeacefulAurora Yellow Mbuna: Aggressive

Least Killifish (Heterandria) & Australian Pearl Arowana

Heterandria formosa · Scleropages jardinii

Least Killifish (Heterandria) & Australian Smelt

Heterandria formosa · Retropinna semoni

Possible with Caution

Least Killifish (Heterandria): PeacefulAustralian Smelt: Peaceful

Least Killifish (Heterandria) & Axelrod's Rainbowfish

Heterandria formosa · Chilatherina axelrodi

Possible with Caution

Least Killifish (Heterandria): PeacefulAxelrod's Rainbowfish: Peaceful

Least Killifish (Heterandria) & Azureus Cichlid

Heterandria formosa · Copadichromis azureus

Possible with Caution

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

Least Killifish (Heterandria) & Badis (Chameleon Fish)

Heterandria formosa · Badis badis

Possible with Caution

Least Killifish (Heterandria): PeacefulBadis (Chameleon Fish): Semi-Aggressive

Least Killifish (Heterandria) & Bahia Red

Heterandria formosa · Geophagus sp. Bahia Red

Possible with Caution

Least Killifish (Heterandria): PeacefulBahia Red: Semi-Aggressive