One unquarantined fish carrying ich or velvet can wipe out an entire display tank in 72 hours. A simple quarantine routine catches problems before they reach your reef.

QT essentials

  • 20-gallon bare-bottom tank
  • Sponge filter cycled in display sump
  • PVC fittings for hiding spots
  • Heater + simple HOB filter
  • Salinity-matched water from display

30-day protocol

Days 1–14: Observe and feed. Days 14–28: Treat with copper at therapeutic level. Days 28–30: Copper-free water change before transfer.

Related reef reading

Reef tools mentioned in this article

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Reef Tank Match Quiz

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Reef Equipment Planner

Generate a complete equipment shortlist for your build.

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Water Parameter Tracker

Log every reading. Catch problems before livestock notice.

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