A reef tank logbook for everyday care
Keep water tests, maintenance notes, and fish and coral records together. Build a history you can return to before your next reef-care decision.
Free to download. Optional in-app purchases.
A useful record starts with the things you measure, maintain, and observe.
Keep each tank’s setup details and records together, from a nano reef to a mixed reef.
Keep details about your pumps, lights, test kits, and other supplies close to your tank records.
Save livestock details and arrival dates so you can return to the history of your reef.
Enter results from your own water tests and review earlier readings when you need the context.
Organize routine tasks and keep a record of completed water changes, cleaning, and other maintenance.
Available in the iOS release: review recorded tank information with AI-assisted risk insights and suggested next steps. Requires Premium.
Water records, livestock details, and maintenance history in one app.
A few practical answers to get started.
Reef Guard has listings on the App Store and Google Play. Open the store link for availability on your device and in your region.
Reef Guard supports manual records. Enter results from your own water tests; no connected controller is needed for manual logging.
The app is free to download and offers optional in-app purchases. Your local store shows the current subscription options and prices.
Email smart0806@163.com with your device, app version, and the step you need help with.
Create a place for your tank details and the records you want to keep.
Start with a result you actually measured. Keep the date and unit in mind when reviewing your readings.
Return after your next maintenance task and record what changed.
Tell us how you keep your reef records
Using a notebook or spreadsheet today? We would like to hear what makes your routine work, and which part of the app could be clearer.
Make your next reef check easier to look back on.