Thanks for the advice aylad. So when you say shock it, do you mean to just use lots of bleach? I just went over and cleaned the filters for the 10th time in as many days. It's been covered in a milky white residue and washes off fairly easily. I checked the balance with the basic kit and the cc and fc are still the same which is over 5ppm. ph seems to be perfect and the ta is perfect. I have been running the filter pump non stop for about 10 days. is this over kill? do i really need to run it this much?

Thanks for any and all advice.