How can a newly set up aquarium achieve clear water and bright fish within three hours? In fact, this does not require a high level of technical difficulty and is not related to whether a complete nitrification system is established. As long as the filtering system is powerful enough to effectively remove impurities and other substances from the substrate sand within the tank, the water quality will become clear, and the fish will appear more vibrant. Therefore, on the first day of setting up a new tank, the primary reliance is on the action of the filtering system, and other factors are not important.

Checking the Filtering System
If your aquarium is not very large, and after a night following the setup, the water is still somewhat turbid, the first step is to check the filtering system. It may be that your filter floss is not fully laid out, causing water to flow directly through the gaps, which affects the filtering effect. Even after a long period of filtration, the water in the tank will remain turbid.
Ensuring Filtering Efficiency
Always remember this: regardless of the type of filtering method used, it is essential to ensure that water cannot flow through any gaps. The interior of the filter must be filled to ensure that water can only pass through the filter floss. This point is extremely important.
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