baking soda will lower PH. and vinegar will raise ph. only a litter though, about the size of your pinky nail.
Knockaholic Reviewed by Knockaholic on . Plants Yellowing/Brown Spots on bottom leaves Well I ran into some more problems after I went to the Caribbean for a week and left a friend to take care of my plants. Now there's some brown spots and yellowing on the lower leaves. There is still purple edges on the leaves and I don't know how to fix it. Also the leaves are drooping and they just don't look very happy. It's been a little over a month now, still vegging under 10 6500k CFLs. A couple plants have stretched so I tied them down and I'm thinking about doing it to the others Rating: 5