Hey! So first time grower here! and I got this Areogarden for free so I figured I'd use it. I did a bunch of research and found that it's ok to start with but realistically it's not the best. Now I've heard there is a "PH" problem with them, but no one really tells you if there's anyway to fix it. So now I have two, 2 1/2 week old 5" tall babies growing, (along with a few flowers and chives, the only way I could grow my plants is to make mom happy with her plants). I'm having a serious problem controlling the PH. When they were smaller it was easy, I put a quarter cap of vinegar in a day and we were good. Now that these guys are bigger, I'm having to put two caps in per day, and the PH is fluctuating between 5.2 and 6.8. It changes that much from the time I leave in the morning (8AM) until I get home (7PM). I wasn't sure how safe PH modifiers were for the plants, so like I said I've been using vinegar. If I use PH modifiers would the PH be more stable? Does anyone know exactly WHY the PH keeps going up? is it something the plants are releasing into the water? waste of some kind? or is it because the vinegar is evaporating out of the water? Any help would be greatly appriciated!