Isan Rice Fish
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Pictures of fish and fish in store may vary, these are just examples/fully grown fish

The Isan Rice Fish (Oryzias minutillus), a charming and diminutive addition to your freshwater aquarium. With its petite size and understated beauty, the Isan Rice Fish brings a touch of nature’s elegance to your aquascape. This captivating fish is perfect for enthusiasts who appreciate small, peaceful species, and adding it to your aquarium will infuse your underwater world with a sense of grace and fascination.

Care Guide: The Isan Rice Fish (Oryzias minutillus) requires specific care to ensure its well-being and to observe its natural behavior. Follow these guidelines to provide optimal conditions for the health and happiness of your Isan Rice Fish:

Aquarium Setup:

  • Tank Size: A small tank of at least 5-10 gallons is suitable for a small group of Isan Rice Fish.
  • Substrate: Use fine sand or smooth gravel to create a comfortable environment for the fish.
  • Decor: Provide plenty of live or artificial plants, driftwood, and hiding spots to mimic its natural habitat.

Water Parameters:

  • Temperature: Maintain water temperatures between 72-78°F (22-26°C).
  • pH: Aim for a neutral pH around 7.0.
  • Hardness: Keep water hardness in the moderate range, around 5-12 dKH.

Filtration and Oxygenation:

  • Provide gentle filtration and good water circulation.
  • Ensure adequate surface agitation to maintain oxygen levels.

Diet and Feeding:

  • Isan Rice Fish are omnivorous and can be fed a diet of high-quality flake or pellet foods.
  • Supplement their diet with live or frozen foods like brine shrimp, daphnia, and micro-worms for variety.


  • Choose peaceful and similarly sized tankmates that share similar water requirements.
  • Avoid aggressive or fin-nipping species that may stress or harm the Isan Rice Fish.

Behavior and Compatibility:

  • Isan Rice Fish are generally peaceful and can be kept in small groups.
  • They are known for their schooling behavior, so maintaining a group of at least 5 individuals is ideal.


  • Regular water changes are essential to maintain water quality and prevent waste buildup.
  • Keep the tank well-maintained and provide clean, well-oxygenated water.

Experience the simple beauty of the Isan Rice Fish in your aquarium. Order now to witness the graceful presence and natural behavior of these delightful fish. Whether you’re an experienced hobbyist or a beginner, the Isan Rice Fish will provide endless fascination and a sense of tranquility to your freshwater aquarium.

Name: Isan Rice Fish
Science Name: Oryzias minutillus
Temperament: Peaceful

Max Size: 1.25″
pH: 6.5 – 7.5
Temperature: 72-80F°  (22-27°C)

Care Level: Easy
Life Expectancy: 2-3 years

Minimum Tank Size Recommended: 10 Gallons
Groups: Recommended in groups 6+ / Thrives in groups 12+


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