Ammonia release from fresh aquasoil and the water-change schedule that follows it.
Published
Purpose
To record what fresh aquasoil actually does over its first weeks on this tank, measured rather than assumed, and to show how the water-change schedule was derived from those measurements.
Background
Active aquasoil releases ammonia for a period after setup and pulls carbonate hardness down. Both are expected and neither is a fault. The usual advice is heavy, frequent water changes for the first weeks, tapering once ammonia reads zero. But 'the first weeks' varies, so the decline is worth measuring rather than following a calendar.
Methodology
01Hand-test ammonia on a repeating schedule from setup onward.
02Log every water change against the ammonia record so the two can be read together.
03Track dissolved solids continuously, so each change shows as a step and the creep between changes is visible.
04Taper the change cadence only after consecutive zero readings, not after a fixed number of days.
Observations
·Ammonia peaked several days after setup rather than immediately.
·The decline was monotonic once it began, halving roughly every few tests.
·Consecutive zero readings, not elapsed time, are what made tapering safe to consider.
Scope
·The measured ammonia curve from setup onward
·How the water-change cadence is derived from test results rather than a calendar