I had the same question....but figured I would read all the old posts about it rather than make a new one. Weird thing is with mine is that of all the tanks I have set up, this is the first that has gone cloudy. Set up 1 month, lots of plants, ammonia and nitrite always 0 since set up, even with adding fish (plants take up the NH3
). Fish and plants are super happy. I guess it's PWCs and patience for me.