Tips to clear yellow water in a fish tank

Yellow water in a fish tank is often caused by aging water, so increase the frequency of water changes – generally once a week, replacing 1/3 each time. Second, clean up waste and leftover food from the bottom to further improve water quality.

In addition, place adsorbent materials like activated carbon and filter floss in the filter chamber; this boosts filtration and helps cultivate nitrifying bacteria. Finally, clean the filter floss every 1-2 weeks and replace it about every 3 months. If you see suspended matter or leaves in the tank, scoop them out promptly.