Have you considered using some filter floss with the filter media? Or run an air stone and/or partial water changes? I would recommend holding off on putting fish in the tank as Russell mentioned. The liquid test kits are a holy grail. I have the older model Spec V. Many years ago when I did a fishless cycle and tried removing the cloudiness, I removed the water output nozzle so it intesified the water flow. I also ran an air stone on high lol. Some may call that strange, but that technique worked for me (plus water changes). There wasn't any fish in the tank anyways. I let the filter sponge capture all the debris and after a few hours, the water cleared up. Then I threw out/replaced the filter floss.
Think occasionally of the suffering of which you spare yourself the sight.
— Albert Schweitzer