The Koi Oscar is a striking Oscar variety with patterns inspired by Koi fish, featuring a mix of red, white, black, and orange colors. Bold, social, and intelligent, it makes for a standout centerpiece in large aquariums.
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The Koi Oscar is a striking Oscar variety with patterns inspired by Koi fish, featuring a mix of red, white, black, and orange colors. Bold, social, and intelligent, it makes for a standout centerpiece in large aquariums.
Mixed patches of white, orange, red, and black similar to Koi carp patterns. Each fish has unique markings, making no two look the same.
10–15 years
Omnivorous; thrives on cichlid pellets, live foods like worms and shrimp, and occasional vegetable matter.
Koi Oscars are a perfect blend of the beauty of Koi fish with the personality of Oscars. With proper care, they thrive as centerpiece fish in large aquariums, rewarding their keepers with unique patterns and intelligence.
Intermediate to Advanced
75 gallons (125+ gallons for pairs)
6.0–7.5
5–20 dGH
74–81°F (23–27°C)
12–14 inches
Large cichlids (Severum, Green Terror, Jaguar), Plecos, Silver Dollars, and Bichirs.
Small tetras, guppies, shrimps, or weak community fish.
Astronotus ocellatus (Koi variety)
Cichlidae
Selective breeding from Amazon Basin Oscars
Semi-aggressive; dominant and territorial, especially when breeding.
Provide a staple of pellets, with supplements of live or frozen foods like shrimp, mealworms, and insects.
Egg layer; lays hundreds of eggs on flat stones or glass, both parents provide care.
Breeding is similar to other Oscars. They form pairs, lay eggs on a clean surface, and guard their young closely. Fry require baby brine shrimp and finely crushed flakes.
pH: 6.0–7.5, Temperature: 74–81°F, Hardness: 5–20 dGH
Hole-in-the-head disease, ich, parasites, obesity, and fin rot. Prevent with water quality management and a balanced diet.
Semi-aggressive; territorial and dominant, especially when housed with smaller fish.
Koi Oscars are playful and intelligent, often moving objects in the tank. They may show aggression toward tank mates, especially during breeding or feeding.
Koi Oscars are selectively bred Oscars designed to resemble the vibrant patterns of Koi carp. Their body showcases patches of white, red, orange, and black, making them one of the most decorative Oscar morphs. Like all Oscars, they are intelligent and personable, often interacting with their owners. They require large aquariums with efficient filtration due to their heavy bio-load. While semi-aggressive, they can live with large, robust tank mates. Koi Oscars are a favorite among aquarists seeking both beauty and personality in a single fish.