Slender Rainbowfish & Fiddler Crab (Brackish)
Melanotaenia gracilis · Uca sp.
Slender Rainbowfish: PeacefulFiddler Crab (Brackish): Mostly Peaceful
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Slender Rainbowfish Tank Mates & Compatibility
Slender Rainbowfish
Melanotaenia gracilis
TemperamentPeaceful (2/10)
Adult Size8 cm
Temperature22–28°C
Water TypeFreshwater Only
Swim ZoneSurface, Mid-level
StockingSchool of 6+
Showing 265 - 288 of 735 Tank Mates
Not Recommended
Slender Rainbowfish & Figure 8 Puffer (Brackish)
Melanotaenia gracilis · Dichotomyctere ocellatus
Slender Rainbowfish: PeacefulFigure 8 Puffer (Brackish): Aggressive
Slender Rainbowfish & Filament Barb
Melanotaenia gracilis · Dawkinsia filamentosa
Slender Rainbowfish: PeacefulFilament Barb: Mostly Peaceful
Slender Rainbowfish & Finger Fish
Melanotaenia gracilis · Monodactylus argenteus
Slender Rainbowfish: PeacefulFinger Fish: Semi-Aggressive
Slender Rainbowfish & Fire Eel
Melanotaenia gracilis · Mastacembelus erythrotaenia
Slender Rainbowfish: PeacefulFire Eel: Mostly Peaceful
Slender Rainbowfish & Fire Tetra
Melanotaenia gracilis · Hyphessobrycon flammeus
Slender Rainbowfish: PeacefulFire Tetra: Peaceful
Slender Rainbowfish & Firemouth Cichlid
Melanotaenia gracilis · Thorichthys meeki
Slender Rainbowfish: PeacefulFiremouth Cichlid: Semi-Aggressive
Slender Rainbowfish & Five Banded Barb
Melanotaenia gracilis · Desmopuntius pentazona
Slender Rainbowfish: PeacefulFive Banded Barb: Peaceful
Slender Rainbowfish & Flag Tetra
Melanotaenia gracilis · Hyphessobrycon heterorhabdus
Slender Rainbowfish: PeacefulFlag Tetra: Peaceful
Slender Rainbowfish & Flagtail Cory (Mrs Schwartz's Cory)
Melanotaenia gracilis · Corydoras robineae
Slender Rainbowfish: PeacefulFlagtail Cory (Mrs Schwartz's Cory): Peaceful
Slender Rainbowfish & Flagtail Prochilodus
Melanotaenia gracilis · Semaprochilodus insignis
Slender Rainbowfish: PeacefulFlagtail Prochilodus: Semi-Aggressive
Slender Rainbowfish & Flash Pleco (L204)
Melanotaenia gracilis · Panaqolus albomaculatus
Slender Rainbowfish: PeacefulFlash Pleco (L204): Mostly Peaceful
Slender Rainbowfish & Flavus Cichlid (Pseudotropheus Flavus)
Melanotaenia gracilis · Chindongo flavus
Slender Rainbowfish: PeacefulFlavus Cichlid (Pseudotropheus Flavus): Aggressive
Slender Rainbowfish & Florida Flagfish
Melanotaenia gracilis · Jordanella floridae
Slender Rainbowfish: PeacefulFlorida Flagfish: Semi-Aggressive
Slender Rainbowfish & Florida Gar
Melanotaenia gracilis · Lepisosteus platyrhincus
Slender Rainbowfish: PeacefulFlorida Gar: Aggressive
Slender Rainbowfish & Flower Stingray
Melanotaenia gracilis · Potamotrygon schroederi
Slender Rainbowfish: PeacefulFlower Stingray: Semi-Aggressive
Slender Rainbowfish & Flowerhorn Cichlid
Melanotaenia gracilis · Hybrid cichlid (Amphilophus cross)
Slender Rainbowfish: PeacefulFlowerhorn Cichlid: Highly Aggressive
Slender Rainbowfish & Fly River Rainbowfish
Melanotaenia gracilis · Melanotaenia sexlineata
Slender Rainbowfish: PeacefulFly River Rainbowfish: Peaceful
Slender Rainbowfish & Flying Fox
Melanotaenia gracilis · Epalzeorhynchos kalopterus
Slender Rainbowfish: PeacefulFlying Fox: Aggressive
Slender Rainbowfish & Flyspeck Hardyhead
Melanotaenia gracilis · Craterocephalus stercusmuscarum
Slender Rainbowfish: PeacefulFlyspeck Hardyhead: Peaceful
Slender Rainbowfish & Forktail Blue-eye
Melanotaenia gracilis · Pseudomugil furcatus
Slender Rainbowfish: PeacefulForktail Blue-eye: Peaceful
Slender Rainbowfish & Fort Maguire Peacock
Melanotaenia gracilis · Aulonocara hansbaenschi
Slender Rainbowfish: PeacefulFort Maguire Peacock: Semi-Aggressive
Slender Rainbowfish & Fosso Cichlid (Fossorochromis rostratus)
Melanotaenia gracilis · Fossorochromis rostratus
Slender Rainbowfish: PeacefulFosso Cichlid (Fossorochromis rostratus): Semi-Aggressive
Slender Rainbowfish & Freshwater Angelfish
Melanotaenia gracilis · Pterophyllum scalare
Slender Rainbowfish: PeacefulFreshwater Angelfish: Semi-Aggressive