I'm using red sea pro test kit. I got a 12.00 reading for nitrate in high range and a reading of 0.02 or 0.04 for phosphate, its hard for me to tell the color differanse. I just started with a few frags of sps in Feb . a slimmer, setosa, purple and pink stylo and orange didgi. All have good PE and the slimmer is incrusting, but my pink stylo is looking a little brown. All my favias and chalice are growing great.So how terrible is that 12.00 nitrate reading for my SPS?