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Oscar
Astronotus ocellatus
Family: Cichlidae
📍 Amazon & Orinoco Basins, South America
Oscars are large, bold cichlids known for their personality and intelligence. They recognise their owners and can be hand-fed, but they are destructive tank inhabitants that will uproot plants and rearrange décor. They need very large tanks with robust filtration.
Keeping this species
- diet
- Carnivore/Omnivore – cichlid pellets, earthworms, crickets, shrimp
- lifespan
- 10–15 years
- max size
- 35 cm (14 in)
- tank size
- 75 gallons minimum
- temperament
- Aggressive; best kept with similar-sized fish
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Tips from the community 💡
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Water it likes
- ph
- 6.0–8.0
- ammonia
- 0 ppm
- nitrate
- <30 ppm
- hardness
- 5–20 dGH
- temperature
- 73–82°F (23–28°C)
Natural Habitat Temperature
77°F — 81°F seasonal range · (Jul low, Feb high)