Quote Originally Posted by herbie the love bud

If for instance your chart says 1500 ppm, that is what the plant needs over the course of one week (that is why we change the reservoir weekly), not what it needs per day!
sorry herbie but i'm still confused. 1500 ppm is NOT a measure of volume, it's a ratio, right? do you mean to say that the schedule implies that the plant only needs 1 gallon at 1500 ppm per week? or am i still way off? thanks in advance.