Setting up a marine aquarium does require more equipment and some additional steps compared to a tropical tank, as marine tanks need to recreate the specific conditions of the ocean for the fish and other organisms to thrive.

Here’s a simplified guide to help you get started:

  1. Choose the Right Tank and Location

    • Select an appropriate size for your tank, ensuring it has enough space for your fish and filtration system. A 100-litre tank is a good starting point.
    • Choose a location away from direct sunlight to prevent temperature fluctuations and algae growth.
  2. Set Up the Filtration System

    • Marine aquariums need a reliable filtration system. Consider a sump, protein skimmer, and live rock for natural filtration.
  3. Install the Heating System

    • Marine fish require stable temperatures (typically 24-27°C). A good quality heater is essential.
  4. Add Substrate

    • Marine aquariums generally use live sand or crushed coral as the substrate, which helps maintain the pH balance.
  5. Add Water and Salt

    • Mix marine salt with freshwater to achieve the correct salinity (specific gravity of 1.023-1.025). Use a hydrometer or refractometer to check.
  6. Cycle the Tank

    • Before adding any fish, cycle your tank for 4-6 weeks to establish the biological filter and ensure that ammonia and nitrites are at zero levels.
  7. Introduce Marine Fish and Corals Gradually

    • Add fish and other organisms slowly to avoid overloading the filtration system. Start with hardier species and gradually introduce more delicate ones as the tank matures.
  8. Maintain the Tank

    • Regular water changes, equipment maintenance, and checking salinity, pH, and other parameters are crucial for the long-term health of the tank.

For more detailed advice and step-by-step instructions, you can refer to the full guide here.

Good luck with your marine aquarium setup!