To start a 20-gallon AIO saltwater tank, set up an ATO system for steady water levels. Use biological filtration and schedule regular water changes. Add sand and rock for habitat. Conceal equipment for a clean appearance. Plan upgrades as your mixed reef tank grows to maintain its health and beauty.
The next step involves adding substrate. A fine sand or special marine substrate is ideal for saltwater environments. Once the substrate is in place, fill the tank with saltwater. Use a hydrometer to measure salinity, aiming for levels between 1.020 and 1.025 specific gravity.
After filling the tank, install the filter and heater. These components are essential for maintaining water quality and temperature. Set the heater to a comfortable range of 76-80°F. Allow the tank to cycle for several weeks. This process establishes beneficial bacteria that will break down waste.
You should also choose suitable fish and coral species. Start with hardier fish like clownfish or damselfish. Introduce them gradually to avoid stressing the environment.
In the next section, we will explore essential maintenance practices for your AIO 20 Gallon Saltwater Fish Tank to ensure a thriving aquatic ecosystem.
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