Waterline Log

Waterline Log is a focused aquarium test journal for freshwater, planted, and shrimp tank keepers. Record pH, ammonia, nitrite, nitrate, temperature, TDS, GH, and KH readings in seconds. Add water changes, filter cleaning, fertilizer, medication events, livestock notes, and general notes to the same timeline so your tank history stays clear. Waterline Log is designed for careful record keeping. It shows recent readings, trends, and maintenance context, but it does not diagnose disease or prescribe treatment. Features: - Fast water-test logging - Freshwater, planted, and shrimp tank profiles - Water change, filter clean, fertilizer, medication, livestock, and note events - Latest readings dashboard - Timeline and trend views - English, Simplified Chinese, and Japanese in-app language switch - Local-only storage with no account and no tracking