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Three-spined Stickleback Aquarium Care Guide

Gasterosteus aculeatus

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Keeping Three-spined Stickleback in an aquarium requires the right conditions.

Aquarium Information

  • Care level: intermediate
  • Temperament: territorial
  • Diet: carnivore
  • Minimum tank size: 20 gallons (for a small group)
  • Compatibility: Best kept in a species-specific tank or with other robust, similarly sized, non-aggressive coldwater fish. Males can be highly territorial, especially during breeding.
  • Special requirements: Requires a well-planted tank with hiding spots and open swimming areas. A substrate suitable for nest building (fine gravel or sand) is beneficial. Good filtration and aeration are essential. Can be kept in either freshwater or brackish setups depending on the origin of the fish.

Water parameters

Temperature
10-20°C (50-68°F)
pH level
6.5-8.0
Hardness
5-20 dGH

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