Oscar

Oscar tank mates

• Common plecoGets along in shared water.Good mates
• SeverumGets along in shared water.Good mates
• Kissing gouramiGets along in shared water.Good mates
• Senegal bichirGets along in shared water.Good mates
• Banded archerfishGets along in shared water.Good mates
• Blood parrot cichlidOscar can eat young or small Blood parrot cichlid; adults are big enough to be safe.Risky
• Blue dolphin cichlidOscar (predatory) will bully the peaceful Blue dolphin cichlid.Risky
• Chinese algae eaterTwo territorial bottom-dwellers: need ≥ 15750 cm² of floor, tank has 5612 cm².Risky
• Clown loachOscar (predatory) will bully the peaceful Clown loach.Risky
• Leopard sailfin plecoOscar (predatory) will bully the peaceful Leopard sailfin pleco.Risky
• Peacock cichlidOscar can eat young or small Malawi butterfly peacock; adults are big enough to be safe.Risky
• Neon tetraOscar can eat Neon tetra: prey body depth 0.7 cm ≤ mouth 12.3 cm.Avoid
• Harlequin rasboraOscar can eat Harlequin rasbora: prey body depth 1.1 cm ≤ mouth 12.3 cm.Avoid
• Fancy guppyOscar can eat Fancy guppy: prey body depth 0.8 cm ≤ mouth 12.3 cm.Avoid
• Panda corydorasOscar can eat Panda corydoras: prey body depth 2.4 cm ≤ mouth 12.3 cm.Avoid
• OtocinclusOscar can eat Otocinclus: prey body depth 0.7 cm ≤ mouth 12.3 cm.Avoid
• Cherry shrimpOscar can eat Cherry shrimp: prey body depth 0.8 cm ≤ mouth 12.3 cm.Avoid

How we check

The numbers the tank model uses for oscars: water as ideal and tolerated ranges, bioload from adult mass, space, flow and how they act on other species.

Standard length

35 cm (SL)

Adult mass

2855.72 g

Bioload at 25 °C

177.04 BU

Min. water

540 L net

Min. footprint

150 × 60 cm per specimen

Group

1+ (best 2)

Swims in

middle, bottom

Flow

moderate

Body / fins

deep bodied, normal fins

Diet type

omnivore meat

Fin nipper

none

Sensitive to

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Sources: Seriously Fish: Astronotus ocellatus · FishBase: Astronotus ocellatus