Slender Rainbowfish Tank Mates & Compatibility

Slender Rainbowfish

Melanotaenia gracilis

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TemperamentPeaceful (2/10)

Adult Size8 cm

Temperature22–28°C

Water TypeFreshwater Only

Swim ZoneSurface, Mid-level

StockingSchool of 6+

Showing 97 - 120 of 735 Tank Mates

Slender Rainbowfish & Betta Macrostoma

Melanotaenia gracilis · Betta macrostoma

Slender Rainbowfish & Betta Smaragdina

Melanotaenia gracilis · Betta smaragdina

Possible with Caution

Slender Rainbowfish: PeacefulBetta Smaragdina: Semi-Aggressive

Slender Rainbowfish & Black Acara

Melanotaenia gracilis · Cichlasoma bimaculatum

Possible with Caution

Slender Rainbowfish: PeacefulBlack Acara: Semi-Aggressive

Slender Rainbowfish & Black Belt Cichlid

Melanotaenia gracilis · Vieja maculicauda

Possible with Caution

Slender Rainbowfish: PeacefulBlack Belt Cichlid: Aggressive

Slender Rainbowfish & Black Bullhead Catfish

Melanotaenia gracilis · Ameiurus melas

Possible with Caution

Slender Rainbowfish: PeacefulBlack Bullhead Catfish: Aggressive

Slender Rainbowfish & Black Corydoras

Melanotaenia gracilis · Corydoras schultzei

Ideal Tank Mates

Slender Rainbowfish: PeacefulBlack Corydoras: Peaceful

Slender Rainbowfish & Black Diamond Cichlid

Melanotaenia gracilis · Paratilapia polleni

Possible with Caution

Slender Rainbowfish: PeacefulBlack Diamond Cichlid: Aggressive

Slender Rainbowfish & Black Fin Cory

Melanotaenia gracilis · Corydoras leucomelas

Possible with Caution

Slender Rainbowfish: PeacefulBlack Fin Cory: Peaceful

Slender Rainbowfish & Black Ghost Knifefish

Melanotaenia gracilis · Apteronotus albifrons

Possible with Caution

Slender Rainbowfish: PeacefulBlack Ghost Knifefish: Semi-Aggressive

Slender Rainbowfish & Black Kuhli Loach

Melanotaenia gracilis · Pangio oblonga

Possible with Caution

Slender Rainbowfish: PeacefulBlack Kuhli Loach: Peaceful

Slender Rainbowfish & Black Marble Hoplo

Melanotaenia gracilis · Megalechis thoracata

Ideal Tank Mates

Slender Rainbowfish: PeacefulBlack Marble Hoplo: Mostly Peaceful

Slender Rainbowfish & Black Neon Tetra

Melanotaenia gracilis · Hyphessobrycon herbertaxelrodi

Ideal Tank Mates

Slender Rainbowfish: PeacefulBlack Neon Tetra: Peaceful

Slender Rainbowfish & Black Ocellatus

Melanotaenia gracilis · Lamprologus speciosus

Possible with Caution

Slender Rainbowfish: PeacefulBlack Ocellatus: Aggressive

Slender Rainbowfish & Black Pacu

Melanotaenia gracilis · Colossoma macropomum

Possible with Caution

Slender Rainbowfish: PeacefulBlack Pacu: Mostly Peaceful

Slender Rainbowfish & Black Phantom Tetra

Melanotaenia gracilis · Hyphessobrycon megalopterus

Possible with Caution

Slender Rainbowfish: PeacefulBlack Phantom Tetra: Peaceful

Slender Rainbowfish & Black Ruby Barb

Melanotaenia gracilis · Pethia nigrofasciata

Ideal Tank Mates

Slender Rainbowfish: PeacefulBlack Ruby Barb: Mostly Peaceful

Slender Rainbowfish & Black Skirt Tetra

Melanotaenia gracilis · Gymnocorymbus ternetzi

Ideal Tank Mates

Slender Rainbowfish: PeacefulBlack Skirt Tetra: Mostly Peaceful

Slender Rainbowfish & Black-Banded Rainbowfish

Melanotaenia gracilis · Melanotaenia nigrans

Ideal Tank Mates

Slender Rainbowfish: PeacefulBlack-Banded Rainbowfish: Peaceful

Slender Rainbowfish & Blackline Rasbora

Melanotaenia gracilis · Rasbora borapetensis

Ideal Tank Mates

Slender Rainbowfish: PeacefulBlackline Rasbora: Peaceful

Slender Rainbowfish & Bladder Snail (Pest Snail)

Melanotaenia gracilis · Physella acuta

Ideal Tank Mates

Slender Rainbowfish: PeacefulBladder Snail (Pest Snail): Peaceful

Slender Rainbowfish & Bleeding Heart Tetra

Melanotaenia gracilis · Hyphessobrycon erythrostigma

Possible with Caution

Slender Rainbowfish: PeacefulBleeding Heart Tetra: Peaceful

Slender Rainbowfish & Bleher's Rainbowfish

Melanotaenia gracilis · Chilatherina bleheri

Ideal Tank Mates

Slender Rainbowfish: PeacefulBleher's Rainbowfish: Peaceful

Slender Rainbowfish & Blind Cave Tetra

Melanotaenia gracilis · Astyanax mexicanus

Ideal Tank Mates

Slender Rainbowfish: PeacefulBlind Cave Tetra: Mostly Peaceful

Slender Rainbowfish & Blood Parrot Cichlid

Melanotaenia gracilis · Hybrid cichlid (Blood Parrot)

Possible with Caution

Slender Rainbowfish: PeacefulBlood Parrot Cichlid: Semi-Aggressive