Do you add anything to water before you put your betta in?

Yes, it's advisable to treat the water before adding your betta. Use a water conditioner to remove harmful chemicals like chlorine and chloramines, which can be harmful to fish. Additionally, consider adjusting the water temperature to match your betta's preferred range of 76-82°F (24-28°C) and check the pH level to ensure it falls between 6.5 and 7.5 for optimal health.