Are you actually using the pH down? In soil, typically, you don't need to. I'm guessing that your soil is the problem. If there's no fert to it, this could be a problem. Like usual, I'm going to suggest you get a bottle, preferable the small one, about 8-9 ounces if you can find it, of Dynagro 7-9-5. It doesn't take much for a soil grow of this fert to work. Just one half teaspoon in a gallon of water will be fine, just don't give a whole lot of water, and see what happens. It could be that there is no fert to this kind of potting soil. After two weeks, this plant should be bigger, like 8 inches in soil grow. If you want really fast growth, then learn how to make a DWC 5 gallon bucket. Or ask at a grow store to show you how. It's easy and Dynagro works good for that too. Just follow the directions on the bottle.
polishpollack Reviewed by polishpollack on . My turn - Stunted growth? Using coco, but this form seems more appropriate than the hydro form. What is your experience level? (first timer, novice, experienced...) Noob (first grow) Your Equipment: .1) Type and wattage of lights. (MH, HPS, CFL's, tube fluorescents, LED's) T5 Florescent 4-2ft tubes in fixture .2) Distance from tops? 4-6 inch .3) Reflector type? (cool tube set-up, bat wing, enclosed reflector, bare bulb...) built-in (fixture) .4) Is there a consistent fresh air supply? Maybe not -- it's in Rating: 5