Thanks for all the suggestions guys, i just dug out my ph meter and tested some water and the shit is off the charts at 8.6 and I know that is waaaaay to high, and by the way I am growing in promix using advanced nutes sensi parts a and b with carb load and big bud. 2000 watts hps and co2 burner. One lesson learned is that never take anything for granted because the simplest things can cause complete kaos in your garden. But I wanna thank everyone for their responses.... I guess thats what happens when you take a years vacation lol