Animal ID
/Natural History/Animal Life Cycle & Growth
Explore Taxon:
Teleost Substrate-Spawning Cichlid Ontogeny

Discus
Symphysodon aequifasciatus

Explore the complete life journey from birth to maximum documented longevity. Move the interactive age slider below to see real-time biometric growth ranges, developmental milestones, metabolic changes, and ontogenetic stages.

Avg Wild Lifespan
12 Years
Typical in habitat
Max Documented
18 Years
Record longevity
Peak Daily Gain
Species-typical; fastest during 0–18 months
Growth velocity
Aging Pattern
Gradual Aging
Senescence curve
Discus
Taxonomic Hierarchy
Cichliformes / Cichlidae
1

Interactive Lifespan & Growth Scrubber

Drag the slider or click any milestone step to observe dynamic biometrics and physiological changes.

🐠
Active Life Stage
Young
🐣 Birth / Day 0Selected Age: Birth / Hatch / Day 0πŸ‘‘ Full Maturity & Maximum Longevity
DiameterRange
4 – 6 cm
Peer-reviewed anatomical bounds for this developmental bracket.
Body Mass RangeEstimated
0.00002 – 0.00004 g
Velocity: Rapid growth phase
Reproductive Maturity0%
Juvenile pre-pubescent phase
Predation Vulnerability
Critical (High Predation)
Survival probability relative to adult predation apex status.
🌿Dietary Intake & Nutrition at Birth / Hatch / Day 0

Parent mucus then microfoods.

🐾Behavior, Locomotion & Ecology

Dependent early stage (parental mucus feeding).

Key Developmental Milestones at this Stage:
First independent feeding attempts
Scientific Note on Precision: Growth values are approximate biological ranges derived from field and veterinary records. Exact size varies by sex, population genetics, nutritional availability, climate, and health.
2

Taxon-Specific Life Stage Machine

How Discus progresses through distinct morphological phases.

πŸ₯š
Stage 1

Egg

Days

Substrate eggs with undefined.

Anatomical Highlights:
  • β€’Adhesive eggs
Ecology: Eggs.
🐠
Stage 2

Fry

Weeks

Feed on parental mucus then microfoods.

Anatomical Highlights:
  • β€’Yolk then exogenous feeding
Ecology: Fry.
🐠
Stage 3

Juvenile

Months

disc-like body plan develops.

Anatomical Highlights:
  • β€’Vertical growth
  • β€’Adult colors emerging
Ecology: Juvenile cichlid.
πŸ‘‘
Stage 4

Adult

Years

Pair-bonding adult from freshwater habitats.

Anatomical Highlights:
  • β€’Adult fins
  • β€’Breeding tubes
Ecology: Adult.
🌟
Stage 5

Elder

Late life

Long-lived for aquarium fish.

Anatomical Highlights:
  • β€’Wear
Ecology: Elder.
3

Growth Timeline Reference Matrix

Standardized peer-reviewed biometric development data.

Age MilestoneLife StageDiameter RangeBody Mass RangeMaturityDietary Regime
🐠Birth / Hatch / Day 0Young4–6 cm0.00002–0.00004 g0%Parent mucus then microfoods.
🐠Early growthYoung5–7.4 cm18–30 g12%Protein-rich foods.
🐠Mid juvenileJuvenile6.8–10.2 cm52.5–87.5 g35%Prepared discus diets.
🐠Late juvenileJuvenile8.8–13.2 cm90–150 g60%Prepared discus diets.
🐠Near maturityAdult10.8–16.2 cm128–213 g85%Prepared discus diets.
πŸ‘‘Prime adultPrime Adult11.8–17.8 cm147–245 g98%Prepared discus diets.
πŸ‘‘Later adultElder12–18 cm150–250 g100%Prepared discus diets.
Growth Velocity Profile
Peak Expansion: 0–18 months
Proportion at Birth: Birth/hatch size is a small fraction of adult size for Discus
Sexual Dimorphism & Human Scale
Male vs. Female: Subtle outside breeding.
Scale: Saucer-sized round cichlid
Developmental Breakthroughs

Key Milestones in the Life of a Discus

🌱Early life

Discus Early Independence Skills

Critical early learning period unique to discus ecology.

πŸ“ˆGrowth peak

Peak Growth Window

0–18 months is when size accumulates fastest.

πŸ‘‘Maturity

Sexual Maturity

Typical maturity near 1.5 years for this species.

🧭Adult ecology

Adult Niche Mastery

Adults specialize in parental mucus feeding.

🍽️Nutrition shift

Diet Transition

Protein-rich foods.

Frequently Asked Questions About Discus Life History

Scientific answers to high-intent queries regarding lifespan and growth.

They graze parental body mucus.

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