Here's why a single temperature doesn't work:
* Species Diversity: The tropical fish category is vast, encompassing hundreds of species. Each species has its preferred temperature range.
* Origin: Even within a species, fish from different geographic origins may have slightly different temperature tolerances.
* Water Chemistry: Water temperature is just one factor; pH, hardness, and other chemical parameters also play a role in fish health.
General Guidelines:
* Most tropical fish prefer a temperature range of 72-82 degrees Fahrenheit (22-28 degrees Celsius).
* Some species, like Discus, require higher temperatures (around 82-86 degrees Fahrenheit).
* Others, like goldfish, are considered "coldwater" fish and prefer lower temperatures (around 68-72 degrees Fahrenheit).
Always do your research!
* Use a reliable source: Look for information from reputable aquariums, fish retailers, or online databases like FishBase.
* Check the species-specific needs: Read about the specific species you're considering to understand their ideal temperature range.
* Invest in a quality thermometer: Accurately monitor your tank's temperature and adjust your heater as needed.
Sudden temperature changes are harmful to fish. Gradual adjustments are better, and keeping a stable temperature within the species' range is essential for their health and well-being.