My tank is about a year old. The chronic PO4 and NO3 are forever the issue.
I have a reactor that I run some Carbon and RowaPhos in intermittantly and some Chaeto down in the sump under a light.
My NO3 hover consistantly 40-60..... water changes work but only for a day or so and then back to 40-60. They dont go over a 60 even if I dont change water for a while.
So, I got thinking. I need a source of anaerobic bacteria to thrive on my NO3. I have decided to build a de-Nitrate Coil. Pics and progress will follow.....
Tank
http://i101.photobucket.com/albums/m...ps16b93732.jpg
Sump
http://i101.photobucket.com/albums/m79/hfp75/sump3.jpg