ive kept my tds low, below950, as its my first grow and have been scared stiff of over fertin my two babys! My nutes recomend 1400 max ppm, my leaves are goin white and curling real bad! is this down to the low ppm? ive sprayed with epsom salts to no avail an my ph is 5.4 - 5.6, their in an ebb an flow two gallon ressy, pump on 15 mins every 3hrs, nutes are power gro - came with hydro kit. 250 HPS 18 inches from tops, temp is bout 80, exhaust fan at top and circulating fan pointin at tops on low speed, no intake as i leave door open a bit with balanket over it.
