How long should you wait before putting betta fish in a new tank?
How long should you wait before putting betta fish in a new tank? Let the water sit for 15 minutes. Your betta needs this time to slowly adjust to the temperature, pH level, and mineral hardness of the water in the tank. If you rush these steps and do not give your betta time to acclimate to the water, it will be harmful to the fish’s health.