I will try and make this short.
My tank has been up and running about 4 months (150sw). I have my tank serviced and have a partial water change every two weeks. My water has alway tested good. 4 weeks ago we took out the bioballs and replaced them with a filter pad. 2 weeks ago we added something called chemi-pure, we also put a timer on my skimmer so it wouldn't run all the time. The nitrate level has slowly increased. I don't have very many fish and I'm sure I was feeding to much, so I cut back on the amount, 2 weeks ago. I have moved some of the rocks and coral around and disturbed some of the sand bed. I don't know if it makes a differance but the temp. has been steady at 80.8 - 81.4. I just checked my water and now it is 20ppm. Like I said I have my tank serviced, because I don't know what I'm doing (yet). I might just be panicing over something that is a normal cycle. What do any of you think?
P.S. The LFS
who dose my servicing has a wonderful reputation, they set up my tank and have a personal interest in it.