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The Coral Reef Builder

Calcium carbonate deposition simulator. Place polyps, adjust water current and light, and watch your reef grow. Balance top-heavy growth against breakage!

Tools

Coral Types

Branching: Fast vertical growth
Brain: Slow, sturdy, low flow
Fan: Needs perpendicular current
Table: Wide horizontal, needs light

Environment

Reef Stats

Coral Colonies: 0
Total Polyps: 0
Reef Height: 0 cm
Breakages: 0
Calcium Saturation

Actions

Current
Light

How to Play

  • Place coral polyps by clicking on the substrate (seafloor) or existing coral
  • Different coral types have different growth patterns and environmental needs:
    • Branching: Fast vertical growth, fragile in high current
    • Brain: Dense, slow-growing, tolerates low flow and shade
    • Sea Fan: Grows perpendicular to current to filter plankton
    • Table: Wide horizontal spread to maximize light capture
  • Balance growth - top-heavy corals can break under their own weight or storm waves
  • Current flow affects which growth forms thrive and how nutrients spread
  • Light is required for photosynthesis (zooxanthellae) - deeper/shaded areas grow slower
  • Watch out for storms - high currents can break fragile branches!

Based on differential growth algorithms and real coral morphology - coral forms adapt to water flow patterns and light availability through calcium carbonate skeleton deposition.