Before you add fish to your aquarium it’s important to understand how to keep the aquarium water clean and healthy enough for fish to live in.
The breakdown of fish waste; too much food and dead plant matter, causes ammonia and other poisons to build up in the water and kill your fish.
Because an aquarium is a ‘closed’ environment, harmful waste can quickly build up. There isn’t enough water to dilute or wash away the toxic compounds, unlike in a natural situation like a pond or river.
But there’s hope; as fish-keepers we can harness a natural process called the ‘Nitrogen Cycle’. Once established in an aquarium, it converts toxic waste into safer compounds.
Take a look at the image below to understand more about how this process works.