The adult size data of Oscar fish (also known as Map Fish or Pig Fish) are as follows:
1. Standard Body Length Range
In artificial breeding environments, they typically reach 25-35 cm in length. They have a robust, oval-shaped body with a broad head.
Wild individuals in the Amazon River basin may be larger, but specific data has not been explicitly mentioned.
2. Physical Characteristics
As large tropical cichlids, they have a laterally compressed body, a wide mouth, and vibrant scales (common varieties include red-flower or albino types).
They grow rapidly, with juveniles gaining 2-3 cm per month, though the growth rate slows down in later stages.
3. Breeding Precautions
Should be kept alone (due to aggressive temperament). A fish tank of at least 200 liters is recommended.
Water quality requirements: Neutral to slightly acidic (pH 6.5-7.5), with water temperature maintained at 24-28°C.
Note: No records of extreme individuals or exceptional sizes under special breeding conditions are mentioned.