Insights
System Stability
A lower score means more stable. Rolling standard deviation (σ) of all probe values over a 6-hour window, normalised to each optimal range. Spikes indicate rapid or large deviations from normal conditions.
Rate of Change
Normalised rate of change per probe (% of optimal range per hour). Values near zero mean the parameter is steady.
DO Diurnal Pattern
Day/night DO cycle — each line is one day, bold is the 7-day average. Shows photosynthesis-driven oxygen production during daylight hours.
DO & ORP Over Time
Dual-axis overlay with outdoor temperature. Correlated DO/ORP drops indicate oxygen-driven redox shifts. The grey dashed line shows outdoor temperature for correlation.
pH ↔ DO Relationship
Nitrification link — DO drops often precede pH drops. When bacteria consume oxygen for nitrification, they produce acid which lowers pH.