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Aquarium Flow Generator

Calculate ideal turnover, recommend wavemaker pumps, and visualize coral-friendly flow patterns for any reef tank size and ambition.

How turnover targets are set

  • Fish-only / FOWLR: 10–15× tank volume per hour
  • Soft coral garden: 15–20× turnover, gentle pulses
  • LPS reef: 20–30× turnover, indirect flow
  • Mixed reef: 30–50× turnover, alternating pattern
  • SPS dominant: 50–80× turnover, gyre + reef-crest mode

Reef-keeping safety: Always use GFCI outlets for any pump in saltwater. Drip loops on every cord. Never run pumps dry — they fail catastrophically and can crack glass.

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