From Fresh to Salt
Transitioning from freshwater to marine reefkeeping is an exciting journey. While many principles remain the same, the ocean requires a slightly different approach to stability and chemistry.
The Main Differences
Salinity: You'll need to manage salt levels (Specific Gravity) using a refractometer.
Stability: Marine ecosystems are more sensitive to change. Slow and steady wins the race.
Flow: Corals need high, turbulent water movement (wavemakers) to survive, not just bubbles.
Chemistry: You'll monitor Alkalinity, Calcium, and Magnesium alongside Nitrates.
Basic Setup Needs
* You can often reuse your freshwater tank itself, provided it hasn't been treated with copper medications.
Ready to Start?
Don't dive in alone! Join the Cape Reef Club community to get your first reef thriving. Members receive comprehensive starter guides, expert technical advice, cycled filter media to jumpstart your cycle, and hardy starter corals.
Joining is free. We're here to help you build a healthy, sustainable marine ecosystem.