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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 409 - 432 of 735 Tank Mates

Slender Rainbowfish & Macaw Cichlid

Melanotaenia gracilis · Hypsophrys nicaraguensis

Possible with Caution
Slender Rainbowfish: PeacefulMacaw Cichlid: Aggressive

Slender Rainbowfish & Madagascar Rainbowfish

Melanotaenia gracilis · Bedotia madagascariensis

Ideal Tank Mates
Slender Rainbowfish: PeacefulMadagascar Rainbowfish: Peaceful

Slender Rainbowfish & Maingano Mbuna

Melanotaenia gracilis · Pseudotropheus cyaneorhabdos

Possible with Caution
Slender Rainbowfish: PeacefulMaingano Mbuna: Aggressive

Slender Rainbowfish & Maison Reef Peacock

Melanotaenia gracilis · Aulonocara stuartgranti "Maison Reef"

Possible with Caution
Slender Rainbowfish: PeacefulMaison Reef Peacock: Semi-Aggressive

Slender Rainbowfish & Malawi Eyebiter

Melanotaenia gracilis · Dimidiochromis compressiceps

Possible with Caution
Slender Rainbowfish: PeacefulMalawi Eyebiter: Aggressive

Slender Rainbowfish & Malawi Gar

Melanotaenia gracilis · Lichnochromis acuticeps

Possible with Caution
Slender Rainbowfish: PeacefulMalawi Gar: Semi-Aggressive

Slender Rainbowfish & Malawi Hawk

Melanotaenia gracilis · Aristochromis christyi

Possible with Caution
Slender Rainbowfish: PeacefulMalawi Hawk: Aggressive

Slender Rainbowfish & Malaya Shrimp

Melanotaenia gracilis · Caridina sp. "Malaya"

Ideal Tank Mates
Slender Rainbowfish: PeacefulMalaya Shrimp: Peaceful

Slender Rainbowfish & Malaysian Trumpet Snail (MTS)

Melanotaenia gracilis · Melanoides tuberculata

Ideal Tank Mates
Slender Rainbowfish: PeacefulMalaysian Trumpet Snail (MTS): Peaceful

Slender Rainbowfish & Mamberamo Rainbowfish

Melanotaenia gracilis · Melanotaenia mamberamo

Ideal Tank Mates
Slender Rainbowfish: PeacefulMamberamo Rainbowfish: Peaceful

Slender Rainbowfish & Marble Goby

Melanotaenia gracilis · Oxyeleotris marmorata

Possible with Caution
Slender Rainbowfish: PeacefulMarble Goby: Aggressive

Slender Rainbowfish & Marbled Bichir

Melanotaenia gracilis · Polypterus polli

Possible with Caution
Slender Rainbowfish: PeacefulMarbled Bichir: Semi-Aggressive

Slender Rainbowfish & Marbled Hatchetfish

Melanotaenia gracilis · Carnegiella strigata

Possible with Caution
Slender Rainbowfish: PeacefulMarbled Hatchetfish: Peaceful

Slender Rainbowfish & Marbled Whiptail

Melanotaenia gracilis · Loricaria simillima

Possible with Caution
Slender Rainbowfish: PeacefulMarbled Whiptail: Peaceful

Slender Rainbowfish & Marlier's Julie

Melanotaenia gracilis · Julidochromis marlieri

Not Recommended
Slender Rainbowfish: PeacefulMarlier's Julie: Semi-Aggressive

Slender Rainbowfish & Masked Julie (Julidochromis)

Melanotaenia gracilis · Julidochromis transcriptus

Possible with Caution
Slender Rainbowfish: PeacefulMasked Julie (Julidochromis): Semi-Aggressive

Slender Rainbowfish & Mayan Cichlid

Melanotaenia gracilis · Mayaheros urophthalmus

Possible with Caution
Slender Rainbowfish: PeacefulMayan Cichlid: Aggressive

Slender Rainbowfish & Mayland's Rainbowfish

Melanotaenia gracilis · Melanotaenia maylandi

Ideal Tank Mates
Slender Rainbowfish: PeacefulMayland's Rainbowfish: Peaceful

Slender Rainbowfish & Mbu Puffer

Melanotaenia gracilis · Tetraodon mbu

Possible with Caution
Slender Rainbowfish: PeacefulMbu Puffer: Aggressive

Slender Rainbowfish & Melon Barb

Melanotaenia gracilis · Haludaria fasciata

Ideal Tank Mates
Slender Rainbowfish: PeacefulMelon Barb: Mostly Peaceful

Slender Rainbowfish & Mexican Dwarf Crayfish (CPO)

Melanotaenia gracilis · Cambarellus patzcuarensis

Ideal Tank Mates
Slender Rainbowfish: PeacefulMexican Dwarf Crayfish (CPO): Mostly Peaceful

Slender Rainbowfish & Midas Cichlid

Melanotaenia gracilis · Amphilophus citrinellus

Possible with Caution
Slender Rainbowfish: PeacefulMidas Cichlid: Highly Aggressive

Slender Rainbowfish & Midnight Catfish

Melanotaenia gracilis · Auchenipterichthys coracoideus

Possible with Caution
Slender Rainbowfish: PeacefulMidnight Catfish: Mostly Peaceful

Slender Rainbowfish & Milomo Hap (Super VC10)

Melanotaenia gracilis · Placidochromis milomo

Possible with Caution
Slender Rainbowfish: PeacefulMilomo Hap (Super VC10): Semi-Aggressive