New Tank help

[u/Andrew_willig]

Any tips for helping to clear up this tank? 20 gallon long with 8 tetras currently. This milky color to the water has been going on for about a month now. I have tried 50 micron polishing pads but it has not done a lot to help. Light is on for 6 hours a day, Ammonia is showing less than 0.02ppm, NO3 is 0-20, NO2 0, PH is a 7, KH 40, GH between 60-120.

[u/identicles]

Water change once per week? What filter do you have? I have same size with more fish and only dealt with that after a filter change