I would keep giving them nothing but PHd water until you see the new growth going nicely without yellowing, then start adding nutes slowly beginning at about 1/3 strength. Look at the charts and use a PPM meter to determine how much nutes too use, or keep increasing slowly until you see small signs of stress, then back it off a touch.
Opie Yutts Reviewed by Opie Yutts on . Magnesium Difficency? What ya think? It's not really effecting alot of the plants, but the leaves that are effected are in the middle of the plant, not at the top which has me a bit confused. I have recently added a bunch of fans so I thought the few that were effected was possibly wind burn, but a few more have shown up with a few odd signs... Had a friend say it looked like mold, I personally don't think that's the case at all. Using SuperNatural Bloom pH 5.7-6.0 Medium SunShine#4 Rating: 5