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Brown Trout Aquarium Care Guide

Salmo trutta

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Keeping Brown Trout in an aquarium requires the right conditions.

Aquarium Information

  • Care level: expert
  • Temperament: aggressive
  • Diet: carnivore
  • Minimum tank size: 500 gallons (for a single adult, larger for multiple or growing fish)
  • Compatibility: Generally not suitable for community aquariums due to their predatory nature and specific environmental requirements. Best kept in species-specific tanks or very large, specialized cold-water setups with other large, robust cold-water fish.
  • Special requirements: Requires very clean, highly oxygenated, cold water with strong filtration and significant water flow. A large tank with plenty of hiding spots (rocks, driftwood) and a substrate mimicking natural riverbeds is essential. Maintaining stable cold temperatures is critical, often requiring chillers. Not typically kept in home aquariums due to size, temperature, and water quality demands.

Water parameters

Temperature
45-65°F (7-18°C)
pH level
6.0-8.0
Hardness
5-20 dGH

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