MY TANK · REEF CHEMISTRY
Your reef.
Your readings.
A clearer picture.
Log the tests you actually took. See each parameter over time, keep the details, and take your records with you.
Log a test sessionNo readings yet
Manual entries · Separate parameter trends · CSV & JSON downloads
YOUR RECORDS, YOUR CHOICE
Keep your chemistry log
Download your log anytime. Browser saving is optional and stays on this device and browser. If you sign in to your store account you can also save named tanks to the account, one save at a time, and open them again on another device. Nothing is uploaded unless you press save.
Browser saving is off. Download before closing to keep your session.
JSON keeps readings, water-change events and your schedule. CSV contains readings only. Imports are reviewed before they merge.
CHECK BEFORE ADDING
Review imported readings
A QUICK TEST SESSION
What did you test?
Select your parameters, then enter the results and the units shown by your test.
KEEP THE TESTS THAT MATTER TO YOU
Add a custom parameter
Enter the parameter name and exact unit from your test. Custom values stay in their own named, unit-specific chart. This uses the test time, kit and notes entered in the session above.
MAINTENANCE WITH CONTEXT
Water changes & what is next
No water-change date set
This is your chosen schedule. Due dates appear here when you return; no push or email reminders are sent.
Log a completed water change
THE VIEW OVER TIME
Your parameter trends
Each graph has its own labeled scale.
Temperature can display in °C or °F. Total and free ammonia stay separate. Other units stay separate; this log makes no salinity, alkalinity, ion-basis or density assumptions. Dots are exact readings; triangles mark test limits. Lines show recorded sequences only; gaps over seven days or a changed method break the line. Seven days is a display cutoff, not a testing recommendation. Scales fit each parameter separately, so compare axis numbers rather than the steepness of different charts.
Log daily, weekly, monthly, yearly or whenever you test. Windows filter actual timestamps; gaps remain gaps. Dashed gold markers show recorded water changes, without claiming they caused a result.
EVERY TEST, WITH ITS CONTEXT
Reading history
Timestamps below show the local clock time and UTC offset recorded for each test. A threshold is kept as < or >.
OPTIONAL ACCOUNT SAVING
Keep several tanks on your account
Use one guest tank for 60 days, starting with your first recorded test. Sign in to keep adding tests afterward or save several tanks. Your existing history stays available to view and download.
If you sign in to your store account you can keep more than one named tank, each with its own readings, dated events and maintenance schedule, and open them again on another device.
Signing in does not upload anything. You choose what to save, one tank at a time.