Ok so im a little confused with what ppm level i should go with. By following fox farms tsp/gal for big bloom and grow big, the ppm range says it should be about 1120-1260. I measured as acurately as I could and when I checked my ppm with my primo hanna, it was only 400!? I did a google and find a lot of different answers. Some saying 400 is ok, but with different nutes, not ff. But anyways, im off by 700.. And also, adding more nutes makes ppm go down? Is there a good thread explaining that? Thanks