M

Medaka

Oryzias latipes

VS
O

Oscar

Astronotus ocellatus

Choosing between Medaka and Oscar? Both are excellent choices, but they have different care requirements and temperaments. Use the detailed comparison below to make an informed decision based on your experience level, tank size, and community goals.

Medaka

Oryzias latipes
VS

Oscar

Astronotus ocellatus
These fish may not be compatible - check temperament and water requirements
Common Name
Medaka
Oscar
Scientific Name
Oryzias latipes
Astronotus ocellatus
Type
Freshwater
Freshwater
Difficulty
Beginner Friendly
Intermediate
Temperament
Peaceful
Aggressive
Minimum Tank
10 gallons
75 gallons
Recommended Tank
20 gallons
125 gallons
Temperature
64°F - 75°F
74°F - 81°F
pH Range
7 - 8
6.5 - 7.5
Max Size
1.5 inches
14 inches
Lifespan
2-4 years
10-20 years
Diet
Micro pellets, Crushed flakes, Frozen cyclops, Small live foods
Cichlid pellets, Live foods, Frozen foods, Vegetables, Shrimp

Medaka

✓ Good For

  • Community tanks
  • Beginners
  • Small tanks
  • Schooling displays

Oscar

✓ Good For

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