If you have installed the 3D Aquarium Desktop before, or found a "3D Aquarium Desktop" icon in the lower right corner of the computer, but the program is not running, please right-click the icon and click "Close" to close it. Never open the Preferences parameter option to set it! If the setting is wrong, it can't be changed even if it is reinstalled! Never!

The most convenient and reliable way to solve the above problems is:

Searching for "user_config.xml" only searches for drive C, and deletes it after searching. Then reload or run!