Hey all... well straigh tto the piont, several months ago, i sent a ICP test away, coz of me having 0 No3 and 0 po4... ICP test saying i have carbon limited, so FF to now ( about 3 months on) i have taken out my bio filter, and cheato, have been using ATI's Nutrition C:N: P to try and get my levels up ( but used reef roids to up the po4) ... From my understanding, Im dosing the carbon to accelerated growth of bacterioplankton... Now as I start to replenish and accelerate the growth of the bacteria, *** My question, should i be putting back either bio balls/bricks/plates or cheato back into my sump for the bacteria to grow in???