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Which condition do most tropical fish prefer?

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  1. A stable temperature
  2. Large daily swings
  3. Very cold water

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References

  1. Merck Veterinary Manual: Environmental Diseases of Aquatic Animals in Aquatic Systems www.merckvetmanual.com/exotic-and-laboratory-animals/aquatic-systems/environmental-diseases-of-aquatic-animals-in-aquatic-systems Checked 2026-10-11.

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