This is my first grow. DWC is 3.5 gallons which means i'm using about 1.5-2 gallons of nutrient solution. I find myself correcting the ph just about everyday. My poor plant keeps getting burned on the tips. My research says this means my plant is eating well. My ppm has gone up as well. I'm preparing a 17 gal tote and I am going to just put the plant, net pot and all in the new tote. My thinking is more water, less fluctuation in ppm and ph. It will still rise but not as fast. Also, with a larger pot I get more roots. More root, more fruit.