so im growing in hydro 4x8 tray 100 gallon rez, and my plants are responding poorly early in bloom... brown spots on the leaves after only 3 days , and yellowing after two weeks.... using house n garden and have cut back nutes and also have just been feeding with water for 3 days .... useing a tall boy filter... and just starting in a new place useing well water .... Calcium magnesium deficiency? nut lock out? i just dont know what the hell is going on !!!