Shoal & Stem
Tony's Tank
L

Lemon Oscar

Astronotus ocellatus

1 in the tank

Where it's from

Native to the Amazon, Approuague, Carvao, Comte and 6 other river basins

Brazil, French Guiana, Colombia, Paraguay, Peru and Venezuela

Recorded as introduced in Australia, United States (Caloosahatchee basin), Canada, Côte d’Ivoire and 8 more places

The range of its wild species, Astronotus ocellatus.

Native range: Global Register of Introduced and Invasive Species (CC BY 4.0); Catálogo Taxonômico da Fauna do Brasil (CC BY 4.0); Tedesco et al. 2017 (CC0).

At a glance

Size
12 in
30 cm
Min tank
75 gal
284 L
Temp
73–82°F
23–28°C
pH
6.0–8.0
GH
89–357 ppm
5–20 dGH
Temperament
Aggressive
Swims
All levels
Lifespan
10–15 yrs

Ammonia 0 ppm and nitrate under 30 ppm.

The care information here is written with AI help, so it can contain mistakes. Spot one? Tell us and we'll fix it.

Everything about Lemon Oscar

Care guide, common diseases, tank mates, keepers' experiences and more