Record readings from your test kit over time, watch trends, and get instant alerts when any parameter drifts toward the danger band — using the same thresholds as the Water Quality Cheat Sheet.
📅 Last reviewed: September 2026 · Data stays in your browser (localStorage) — nothing is uploaded.
| Parameter | Ideal | Trend | Latest | Status |
|---|
| Date | pH | Temp °C | DO | NH₃/NH₄⁺ | NO₂⁻ | Alkalinity | Overall | Notes |
|---|
Status bands follow the site standard: pH ideal 7.0–8.5 · DO ideal 6–8 · ammonia ideal <0.5 · nitrite ideal <0.1 · alkalinity ideal 100–200. See the cheat sheet for the full table.