epicentyr;1776694; said:How did you find out that your filters need changing?
i found out that the way i calculated the life of my filters was totally wrong.
i talked to someone that had the same exact problem b4. i switched the filters and used de-chlor and they started getting better that night.
this went on for about a week b4 i found out what was wrong, in this week i never had one bit of ammonia.
my first thought when i read the thread was: with growing rays, there wasnt enough media in the first place. (just a thought)