First decision

Record growth, maturity and lifespan

You want to estimate age, growth, maturity or lifespan.

Use the whole card. The action stays attached to what must be observed and recorded, plus the nearest inference or action the current guidance cannot support.

Observe first

Separate known hatch date, body measurement, life stage, reproductive evidence, source history and last-seen status.

First action

Measure a defined body landmark repeatedly for an identified cohort rather than inferring exact age from size.

Record next

Record hatch or acquisition basis, measurement method, dates, molts, maturity evidence, transfers, deaths, removals and censoring.

Stop boundary

Do not convert one size, seller estimate or oldest visible animal into exact age, remaining lifespan or a population survival curve.

Continue with the governing guide

Record growth, maturity and lifespan owns the complete method, evidence, limitations and revision history. This card introduces no separate biological claim.

Teaching card titled Record growth, maturity and lifespan: first decision. Situation: You want to estimate age, growth, maturity or lifespan. Observe first: Separate known hatch date, body measurement, life stage, reproductive evidence, source history and last-seen status. First action: Measure a defined body landmark repeatedly for an identified cohort rather than inferring exact age from size. Record next: Record hatch or acquisition basis, measurement method, dates, molts, maturity evidence, transfers, deaths, removals and censoring. Stop boundary: Do not convert one size, seller estimate or oldest visible animal into exact age, remaining lifespan or a population survival curve. The permanent card is at moltandmoss.com/care/action-cards/growth and the governing guide is at moltandmoss.com/care/growth. — Original typography-only teaching visual containing the complete card. It is not specimen evidence.

Copy the complete card

Keep every part and both permanent links together.

MOLT & MOSS NEOCARIDINA DECISION CARD
Version: 1.0
Reviewed: 2026-08-12
Topic: Record growth, maturity and lifespan

Situation: You want to estimate age, growth, maturity or lifespan.
Observe first: Separate known hatch date, body measurement, life stage, reproductive evidence, source history and last-seen status.
First action: Measure a defined body landmark repeatedly for an identified cohort rather than inferring exact age from size.
Record next: Record hatch or acquisition basis, measurement method, dates, molts, maturity evidence, transfers, deaths, removals and censoring.
Stop boundary: Do not convert one size, seller estimate or oldest visible animal into exact age, remaining lifespan or a population survival curve.
Permanent card: https://moltandmoss.com/care/action-cards/growth
Governing guide: https://moltandmoss.com/care/growth

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

Open the portable text version or open the complete visual card.

Copy the exact accessibility description

Use this complete description when a platform provides an alt-text field. Do not shorten away the stopping boundary.

Teaching card titled Record growth, maturity and lifespan: first decision. Situation: You want to estimate age, growth, maturity or lifespan. Observe first: Separate known hatch date, body measurement, life stage, reproductive evidence, source history and last-seen status. First action: Measure a defined body landmark repeatedly for an identified cohort rather than inferring exact age from size. Record next: Record hatch or acquisition basis, measurement method, dates, molts, maturity evidence, transfers, deaths, removals and censoring. Stop boundary: Do not convert one size, seller estimate or oldest visible animal into exact age, remaining lifespan or a population survival curve. The permanent card is at moltandmoss.com/care/action-cards/growth and the governing guide is at moltandmoss.com/care/growth.

Card version 1.0, reviewed 2026-08-12. This is a first-decision aid, not diagnosis, treatment authorization, emergency service or a complete method.