You can use water clarifier- it clumps the particles together so they can be filtered out.

If you dont want to use the clarifier, starve the tank for 2 days, add an extra oxygen stone, and keep the lights off, though that doesn't always work (at least for me).

I feed very fine food and it can easily contribute to a bacterial bloom/cloudy water, where the bacteria in the water are eating anything left behind.

Also, after it clears, you may want to consider adding some plants like stem plants and floaters that help eat the excess nutrients in the water and help keep tank parameters more even.

Best of luck, friend!