MOLT & MOSS NEOCARIDINA DECISION CARD
Version: 1.0
Reviewed: 2026-08-12
Topic: Interpret GH, KH, TDS, pH and conductivity

Situation: You are interpreting GH, KH, TDS, conductivity or pH.
Observe first: Identify the exact measurement, unit, method, calibration or resolution and the decision you expect that number to inform.
First action: Compare like measurements and investigate the specific chemical property needed instead of treating one aggregate number as water quality.
Record next: Record sample source, time, temperature, unit, method, resolution, repeat result and any source-to-tank difference.
Stop boundary: Do not treat matching TDS as matching ions or turn a house recipe, occurrence range or seller range into a species optimum.
Permanent card: https://moltandmoss.com/care/action-cards/parameters
Governing guide: https://moltandmoss.com/care/parameters

This card is a first-decision aid, not a diagnosis, treatment authorization, complete method or substitute for the governing guide.