You just got a new tank and all the fish in it died Should you emty out refill before put it?

Yes, you should empty and refill the tank before adding new fish. Here's why:

1. Potential Contaminants: The water in the tank may contain harmful bacteria, toxins, or other contaminants that could have caused the death of the previous fish. To ensure a safe and healthy environment for the new fish, it's essential to completely empty the tank and start with fresh, clean water.

2. Cleaning and Inspection: Emptying the tank allows you to thoroughly clean and inspect it for any damage, leaks, or other issues. This maintenance step is crucial to ensure the tank is in good condition and suitable for housing fish.

3. Resetting Water Parameters: When setting up a new tank or restarting after fish death, it's important to establish the appropriate water parameters for your specific fish species. This may involve adjusting the temperature, pH, hardness, and other water chemistry factors. Starting with fresh water allows you to control and adjust these parameters accurately.

4. Disease Prevention: If the previous fish died due to a disease or infection, emptying the tank helps break the disease cycle and prevents the spread of pathogens to new fish. By starting with a clean slate, you reduce the risk of introducing harmful microorganisms into the tank.

5. Peace of Mind: Emptying and refilling the tank provides peace of mind, ensuring you've created a safe and suitable environment for your new fish. It also allows you to start fresh and make any adjustments or modifications to the tank setup based on your experience with the previous fish.