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Reef Companion

Your tank, your routine.

Start by adding your tank. When you’re happy, save Companion on this device, and download a backup to keep it safe or move it elsewhere.

Your free Companion

Your tank, routine, water tests and spending stay on this page until you choose to save. Device saving uses this browser only; download a backup before clearing browser data or changing device.

Create your first tank

Your data

Download your current tank, tasks, tests, history, cost plan and expenses. Clearing removes page records and the saved Companion in this browser.