Track your
tank's rhythm.
Where your tank actually is, one rhythm at a time.
This tool reads the tank you already have — not the one you're about to build. If there's no tank yet, Keeper Readiness Check is the better place to start: it only asks about you, and needs nothing running yet.
Each rhythm can sit at a different phase at the same time — a filter can be mature while the lighting schedule is barely a week old. Check one now and get an answer immediately, or come back later and build toward the full picture. Nothing here needs to be done in order, and nothing here is being graded.
All five rhythms are ready below. What you get at the end is a reflection grounded in the ARA framework — not a diagnosis, and not a score to beat.
Tap an empty rhythm to check it too — nothing here needs to happen in order.
Do you test for dissolved oxygen directly
Not whether you know oxygen matters — whether you've actually measured it, with a test or meter.
When care has slipped
Not a hypothetical — think of an actual stretch when care slipped.
How much temperature actually moves
Across a normal week — not a one-off heater failure or power cut.
How the stocking has changed
Since the tank was set up, not just the last few weeks.
A little more, about how things have been
Answer whichever of these actually applies — it's fine to leave any of them blank.
Tap an empty rhythm to check it too — nothing here needs to happen in order.
This reflection covers one rhythm only. A tank can sit at a different phase in each of the five rhythms — this isn't the whole picture, just one honest piece of it.