Starting with FM US style

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    • Starting with FM US style

      To do or not to do.

      I just started with balling light US-style by FM I have a 530L tank.
      The tank been up running since november 2016. with strong groth and now big colonies.

      I what to follow the US -style strictly, but I have always been struggling with low phosphorus and nitrates.
      The last icp test came with a result of 0,0053 Po4.
      Yes I am feeding both my fish and my corals, and I have 20 fish in the tank.

      My question in this thread is: Do I need to do this ultra carbon / Phos 0,04 since po4 is not a problem at the moment.