REEF TANK COMPANION
Log parameters. Dose safely. Track your reef over time.
Reef-Log helps hobbyists and fish stores keep salinity, alk, calcium, magnesium, and more in one place — with history charts, dosing guardrails, tank photos, and livestock records.
Parameter logging
Toggle which metrics you track. Tap for history, hold to quick-log with an editable timestamp.
Dosing calculator
Safe daily/weekly doses for live feeds and additives, with alk, calcium, and magnesium limits.
Tank progression
Save compressed tank photos over time so you can see how your reef changes.
Livestock ledger
Log additions and losses for fish, coral, and inverts in one simple list.
Reef Juice ready
Default products from reef-juice.com, with Shopify account linking for partner discounts.
Built for stores too
Fish stores can invite customer sub-accounts and share logging access for tanks they service.