New Guinea Rainbowfish Tank Mates & Compatibility

New Guinea Rainbowfish

Melanotaenia affinis

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TemperamentPeaceful (2/10)

Adult Size11.5 cm

Temperature22–28°C

Water TypeFreshwater Only

Swim ZoneMid-level, Surface

StockingSchool of 6+

Showing 193 - 216 of 735 Tank Mates

New Guinea Rainbowfish & Cockatoo Dwarf Cichlid

Melanotaenia affinis · Apistogramma cacatuoides

Possible with Caution

New Guinea Rainbowfish: PeacefulCockatoo Dwarf Cichlid: Semi-Aggressive

New Guinea Rainbowfish & Colombian Shark Catfish (Brackish)

Melanotaenia affinis · Ariopsis seemanni

New Guinea Rainbowfish & Colombian Tetra

Melanotaenia affinis · Hyphessobrycon columbianus

Ideal Tank Mates

New Guinea Rainbowfish: PeacefulColombian Tetra: Mostly Peaceful

New Guinea Rainbowfish & Common Pleco

Melanotaenia affinis · Hypostomus plecostomus

Possible with Caution

New Guinea Rainbowfish: PeacefulCommon Pleco: Mostly Peaceful

New Guinea Rainbowfish & Common Pleco (Amazon Sailfin)

Melanotaenia affinis · Pterygoplichthys pardalis

Possible with Caution

New Guinea Rainbowfish: PeacefulCommon Pleco (Amazon Sailfin): Mostly Peaceful

New Guinea Rainbowfish & Common Synodontis (False Upside Down Catfish)

Melanotaenia affinis · Synodontis nigrita

Possible with Caution

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

New Guinea Rainbowfish & Common Whiptail Catfish

Melanotaenia affinis · Rineloricaria eigenmanni

Possible with Caution

New Guinea Rainbowfish: PeacefulCommon Whiptail Catfish: Peaceful

New Guinea Rainbowfish & Congo Bichir

Melanotaenia affinis · Polypterus endlicheri congicus

Possible with Caution

New Guinea Rainbowfish: PeacefulCongo Bichir: Aggressive

New Guinea Rainbowfish & Congo Puffer (Potato Puffer)

Melanotaenia affinis · Tetraodon miurus

Possible with Caution

New Guinea Rainbowfish: PeacefulCongo Puffer (Potato Puffer): Highly Aggressive

New Guinea Rainbowfish & Congo Tetra

Melanotaenia affinis · Phenacogrammus interruptus

Possible with Caution

New Guinea Rainbowfish: PeacefulCongo Tetra: Peaceful

New Guinea Rainbowfish & Contradens Pleco (Snowball Variant)

Melanotaenia affinis · Hypancistrus contradens

Possible with Caution

New Guinea Rainbowfish: PeacefulContradens Pleco (Snowball Variant): Mostly Peaceful

New Guinea Rainbowfish & Convict Cichlid

Melanotaenia affinis · Amatitlania nigrofasciata

Possible with Caution

New Guinea Rainbowfish: PeacefulConvict Cichlid: Aggressive

New Guinea Rainbowfish & Copper Harlequin Rasbora

Melanotaenia affinis · Trigonostigma hengeli

Possible with Caution

New Guinea Rainbowfish: PeacefulCopper Harlequin Rasbora: Peaceful

New Guinea Rainbowfish & Corona Rainbowfish

Melanotaenia affinis · Melanotaenia corona

Ideal Tank Mates

New Guinea Rainbowfish: PeacefulCorona Rainbowfish: Peaceful

New Guinea Rainbowfish & Crimsonspotted Rainbowfish

Melanotaenia affinis · Melanotaenia duboulayi

Ideal Tank Mates

New Guinea Rainbowfish: PeacefulCrimsonspotted Rainbowfish: Peaceful

New Guinea Rainbowfish & Crying Whiptail

Melanotaenia affinis · Loricaria sp. "Rio Atabapo"

Possible with Caution

New Guinea Rainbowfish: PeacefulCrying Whiptail: Peaceful

New Guinea Rainbowfish & Cuban Cichlid

Melanotaenia affinis · Nandopsis tetracanthus

Possible with Caution

New Guinea Rainbowfish: PeacefulCuban Cichlid: Aggressive

New Guinea Rainbowfish & Cuban Gar

Melanotaenia affinis · Atractosteus tristoechus

Possible with Caution

New Guinea Rainbowfish: PeacefulCuban Gar: Semi-Aggressive

New Guinea Rainbowfish & Cuckoo Catfish

Melanotaenia affinis · Synodontis multipunctatus

Possible with Caution

New Guinea Rainbowfish: PeacefulCuckoo Catfish: Semi-Aggressive

New Guinea Rainbowfish & Cupid Cichlid

Melanotaenia affinis · Biotodoma cupido

Possible with Caution

New Guinea Rainbowfish: PeacefulCupid Cichlid: Mostly Peaceful

New Guinea Rainbowfish & Cutteri Cichlid

Melanotaenia affinis · Amatitlania cutteri

Possible with Caution

New Guinea Rainbowfish: PeacefulCutteri Cichlid: Aggressive

New Guinea Rainbowfish & Cyprichromis Leptosoma

Melanotaenia affinis · Cyprichromis leptosoma

Possible with Caution

New Guinea Rainbowfish: PeacefulCyprichromis Leptosoma: Mostly Peaceful

New Guinea Rainbowfish & Dainty Cory (Salt and Pepper Cory)

Melanotaenia affinis · Corydoras habrosus

Ideal Tank Mates

New Guinea Rainbowfish: PeacefulDainty Cory (Salt and Pepper Cory): Peaceful

New Guinea Rainbowfish & Debauwi Catfish (Three-Striped Glass Catfish)

Melanotaenia affinis · Pareutropius buffei

Ideal Tank Mates

New Guinea Rainbowfish: PeacefulDebauwi Catfish (Three-Striped Glass Catfish): Peaceful