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Oscar Tank Mates & Compatibility

Oscar

Astronotus ocellatus

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TemperamentAggressive (7/10)
Adult Size30 cm
Temperature23–27°C
Water TypeFreshwater Only
Swim ZoneMid-level, Bottom
StockingSolo or group
Showing 265 - 288 of 735 Tank Mates

Oscar & Fiddler Crab (Brackish)

Astronotus ocellatus · Uca sp.

Not Recommended
Oscar: AggressiveFiddler Crab (Brackish): Mostly Peaceful

Oscar & Figure 8 Puffer (Brackish)

Astronotus ocellatus · Dichotomyctere ocellatus

Not Recommended
Oscar: AggressiveFigure 8 Puffer (Brackish): Aggressive

Oscar & Filament Barb

Astronotus ocellatus · Dawkinsia filamentosa

Possible with Caution
Oscar: AggressiveFilament Barb: Mostly Peaceful

Oscar & Finger Fish

Astronotus ocellatus · Monodactylus argenteus

Not Recommended
Oscar: AggressiveFinger Fish: Semi-Aggressive

Oscar & Fire Eel

Astronotus ocellatus · Mastacembelus erythrotaenia

Possible with Caution
Oscar: AggressiveFire Eel: Mostly Peaceful

Oscar & Fire Tetra

Astronotus ocellatus · Hyphessobrycon flammeus

Not Recommended
Oscar: AggressiveFire Tetra: Peaceful

Oscar & Firemouth Cichlid

Astronotus ocellatus · Thorichthys meeki

Possible with Caution
Oscar: AggressiveFiremouth Cichlid: Semi-Aggressive

Oscar & Five Banded Barb

Astronotus ocellatus · Desmopuntius pentazona

Possible with Caution
Oscar: AggressiveFive Banded Barb: Peaceful

Oscar & Flag Tetra

Astronotus ocellatus · Hyphessobrycon heterorhabdus

Not Recommended
Oscar: AggressiveFlag Tetra: Peaceful

Oscar & Flagtail Cory (Mrs Schwartz's Cory)

Astronotus ocellatus · Corydoras robineae

Possible with Caution
Oscar: AggressiveFlagtail Cory (Mrs Schwartz's Cory): Peaceful

Oscar & Flagtail Prochilodus

Astronotus ocellatus · Semaprochilodus insignis

Possible with Caution
Oscar: AggressiveFlagtail Prochilodus: Semi-Aggressive

Oscar & Flash Pleco (L204)

Astronotus ocellatus · Panaqolus albomaculatus

Possible with Caution
Oscar: AggressiveFlash Pleco (L204): Mostly Peaceful

Oscar & Flavus Cichlid (Pseudotropheus Flavus)

Astronotus ocellatus · Chindongo flavus

Not Recommended
Oscar: AggressiveFlavus Cichlid (Pseudotropheus Flavus): Aggressive

Oscar & Florida Flagfish

Astronotus ocellatus · Jordanella floridae

Possible with Caution
Oscar: AggressiveFlorida Flagfish: Semi-Aggressive

Oscar & Florida Gar

Astronotus ocellatus · Lepisosteus platyrhincus

Possible with Caution
Oscar: AggressiveFlorida Gar: Aggressive

Oscar & Flower Stingray

Astronotus ocellatus · Potamotrygon schroederi

Possible with Caution
Oscar: AggressiveFlower Stingray: Semi-Aggressive

Oscar & Flowerhorn Cichlid

Astronotus ocellatus · Hybrid cichlid (Amphilophus cross)

Possible with Caution
Oscar: AggressiveFlowerhorn Cichlid: Highly Aggressive

Oscar & Fly River Rainbowfish

Astronotus ocellatus · Melanotaenia sexlineata

Possible with Caution
Oscar: AggressiveFly River Rainbowfish: Peaceful

Oscar & Flying Fox

Astronotus ocellatus · Epalzeorhynchos kalopterus

Possible with Caution
Oscar: AggressiveFlying Fox: Aggressive

Oscar & Flyspeck Hardyhead

Astronotus ocellatus · Craterocephalus stercusmuscarum

Possible with Caution
Oscar: AggressiveFlyspeck Hardyhead: Peaceful

Oscar & Forktail Blue-eye

Astronotus ocellatus · Pseudomugil furcatus

Not Recommended
Oscar: AggressiveForktail Blue-eye: Peaceful

Oscar & Fort Maguire Peacock

Astronotus ocellatus · Aulonocara hansbaenschi

Not Recommended
Oscar: AggressiveFort Maguire Peacock: Semi-Aggressive

Oscar & Fosso Cichlid (Fossorochromis rostratus)

Astronotus ocellatus · Fossorochromis rostratus

Not Recommended
Oscar: AggressiveFosso Cichlid (Fossorochromis rostratus): Semi-Aggressive

Oscar & Freshwater Angelfish

Astronotus ocellatus · Pterophyllum scalare

Possible with Caution
Oscar: AggressiveFreshwater Angelfish: Semi-Aggressive