Aquarium is a macOS menu bar utility that prevents the computer from sleeping when the lid is closed, optionally dims the internal display, limits activation to specific apps or processes, and respects battery thresholds.
How It Works
You find a handy menu bar tool that keeps your Mac laptop running even when you close the lid, perfect for using an external screen.
Download and add Aquarium to your Mac's Applications folder with a simple installer.
Click the little fish icon that appears in your top menu bar to get started.
Open the friendly settings window to choose when it activates, like only for certain apps or above a battery level.
Flip the switch to enable it, and grant permission once for it to adjust your power settings safely.
Close your laptop lid confidently—your Mac stays awake, screen dims if you want, and works just how you set it.
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