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 0👑 Full Maturity & Maximum Longevity
DiameterRange
46 cm
Peer-reviewed anatomical bounds for this developmental bracket.
Body Mass RangeEstimated
0.000020.00004 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.

🥚
Stage 1

Egg

Days

Substrate eggs with undefined.

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

Fry

Weeks

Feed on parental mucus then microfoods.

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

Juvenile

Months

disc-like body plan develops.

Anatomical Highlights:
  • Vertical growth
  • Adult colors emerging
Ecology: Juvenile cichlid.
👑
Stage 4

Adult

Years

Pair-bonding adult from freshwater habitats.

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

Elder

Late life

Long-lived for aquarium fish.

Anatomical Highlights:
  • Wear
Ecology: Elder.
3

Growth Timeline Reference Matrix

Standardized peer-reviewed biometric development data.

Age MilestoneLife StageDiameter RangeBody Mass RangeMaturityDietary Regime
🐠Birth / Hatch / Day 0Young46 cm0.000020.00004 g0%Parent mucus then microfoods.
🐠Early growthYoung57.4 cm1830 g12%Protein-rich foods.
🐠Mid juvenileJuvenile6.810.2 cm52.587.5 g35%Prepared discus diets.
🐠Late juvenileJuvenile8.813.2 cm90150 g60%Prepared discus diets.
🐠Near maturityAdult10.816.2 cm128213 g85%Prepared discus diets.
👑Prime adultPrime Adult11.817.8 cm147245 g98%Prepared discus diets.
👑Later adultElder1218 cm150250 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.

📈Growth peak

Peak Growth Window

0–18 months is when size accumulates fastest.

👑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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