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 193 - 216 of 735 Tank Mates

Slender Rainbowfish & Cockatoo Dwarf Cichlid

Melanotaenia gracilis · Apistogramma cacatuoides

Possible with Caution

Slender Rainbowfish: PeacefulCockatoo Dwarf Cichlid: Semi-Aggressive

Slender Rainbowfish & Colombian Shark Catfish (Brackish)

Melanotaenia gracilis · Ariopsis seemanni

Slender Rainbowfish & Colombian Tetra

Melanotaenia gracilis · Hyphessobrycon columbianus

Ideal Tank Mates

Slender Rainbowfish: PeacefulColombian Tetra: Mostly Peaceful

Slender Rainbowfish & Common Pleco

Melanotaenia gracilis · Hypostomus plecostomus

Possible with Caution

Slender Rainbowfish: PeacefulCommon Pleco: Mostly Peaceful

Slender Rainbowfish & Common Pleco (Amazon Sailfin)

Melanotaenia gracilis · Pterygoplichthys pardalis

Possible with Caution

Slender Rainbowfish: PeacefulCommon Pleco (Amazon Sailfin): Mostly Peaceful

Slender Rainbowfish & Common Synodontis (False Upside Down Catfish)

Melanotaenia gracilis · Synodontis nigrita

Possible with Caution

Slender Rainbowfish: PeacefulCommon Synodontis (False Upside Down Catfish): Mostly Peaceful

Slender Rainbowfish & Common Whiptail Catfish

Melanotaenia gracilis · Rineloricaria eigenmanni

Possible with Caution

Slender Rainbowfish: PeacefulCommon Whiptail Catfish: Peaceful

Slender Rainbowfish & Congo Bichir

Melanotaenia gracilis · Polypterus endlicheri congicus

Possible with Caution

Slender Rainbowfish: PeacefulCongo Bichir: Aggressive

Slender Rainbowfish & Congo Puffer (Potato Puffer)

Melanotaenia gracilis · Tetraodon miurus

Possible with Caution

Slender Rainbowfish: PeacefulCongo Puffer (Potato Puffer): Highly Aggressive

Slender Rainbowfish & Congo Tetra

Melanotaenia gracilis · Phenacogrammus interruptus

Possible with Caution

Slender Rainbowfish: PeacefulCongo Tetra: Peaceful

Slender Rainbowfish & Contradens Pleco (Snowball Variant)

Melanotaenia gracilis · Hypancistrus contradens

Possible with Caution

Slender Rainbowfish: PeacefulContradens Pleco (Snowball Variant): Mostly Peaceful

Slender Rainbowfish & Convict Cichlid

Melanotaenia gracilis · Amatitlania nigrofasciata

Possible with Caution

Slender Rainbowfish: PeacefulConvict Cichlid: Aggressive

Slender Rainbowfish & Copper Harlequin Rasbora

Melanotaenia gracilis · Trigonostigma hengeli

Possible with Caution

Slender Rainbowfish: PeacefulCopper Harlequin Rasbora: Peaceful

Slender Rainbowfish & Corona Rainbowfish

Melanotaenia gracilis · Melanotaenia corona

Ideal Tank Mates

Slender Rainbowfish: PeacefulCorona Rainbowfish: Peaceful

Slender Rainbowfish & Crimsonspotted Rainbowfish

Melanotaenia gracilis · Melanotaenia duboulayi

Ideal Tank Mates

Slender Rainbowfish: PeacefulCrimsonspotted Rainbowfish: Peaceful

Slender Rainbowfish & Crying Whiptail

Melanotaenia gracilis · Loricaria sp. "Rio Atabapo"

Possible with Caution

Slender Rainbowfish: PeacefulCrying Whiptail: Peaceful

Slender Rainbowfish & Cuban Cichlid

Melanotaenia gracilis · Nandopsis tetracanthus

Possible with Caution

Slender Rainbowfish: PeacefulCuban Cichlid: Aggressive

Slender Rainbowfish & Cuban Gar

Melanotaenia gracilis · Atractosteus tristoechus

Possible with Caution

Slender Rainbowfish: PeacefulCuban Gar: Semi-Aggressive

Slender Rainbowfish & Cuckoo Catfish

Melanotaenia gracilis · Synodontis multipunctatus

Possible with Caution

Slender Rainbowfish: PeacefulCuckoo Catfish: Semi-Aggressive

Slender Rainbowfish & Cupid Cichlid

Melanotaenia gracilis · Biotodoma cupido

Possible with Caution

Slender Rainbowfish: PeacefulCupid Cichlid: Mostly Peaceful

Slender Rainbowfish & Cutteri Cichlid

Melanotaenia gracilis · Amatitlania cutteri

Possible with Caution

Slender Rainbowfish: PeacefulCutteri Cichlid: Aggressive

Slender Rainbowfish & Cyprichromis Leptosoma

Melanotaenia gracilis · Cyprichromis leptosoma

Possible with Caution

Slender Rainbowfish: PeacefulCyprichromis Leptosoma: Mostly Peaceful

Slender Rainbowfish & Dainty Cory (Salt and Pepper Cory)

Melanotaenia gracilis · Corydoras habrosus

Ideal Tank Mates

Slender Rainbowfish: PeacefulDainty Cory (Salt and Pepper Cory): Peaceful

Slender Rainbowfish & Debauwi Catfish (Three-Striped Glass Catfish)

Melanotaenia gracilis · Pareutropius buffei

Ideal Tank Mates

Slender Rainbowfish: PeacefulDebauwi Catfish (Three-Striped Glass Catfish): Peaceful