I have had my scrubber set up since August 2013 with limited results. I am looking for advise as to what i am doing wrong or what i need to change to make it better. I am using two 13 watt cfl 6500k bulbs, the flow is directly from the overflow with the return pumping 1200 gallons per hr of which aprox half goes to the scrubber half through filter socks. Here are some pictures of the setup. I am a huge believer in this method of nutrient removal but have yet to realize its full potential in my own system any help will be appreciated.... If there is any info you need please ask.