I used Fox Farm for years too and was satisfied with the results. Talking hydro here. I was satisfied because I didn't know any different, and it was hugely different to the soil grows I was used too. It left me with deficiencies, specifically iron and nitrogen. I am in no way an expert at deficiencies, but when I tried supplements the problems got better and I became more than satisfied. After much reading and asking around I'm about ready for a full on Dutch Master grow, with a little Advanced Nutrients thrown in at the end. Those are two names that will not steer you wrong IMO and in that of many others more knowledgeable than I.

I won't try and tell you what's causing yellow spots because I've decided to not give advice if I'm not sure about something. I don't want to risk someone else's grow. The best advice I know to give is to research via the www. I'd start with this forum and search problem chart, since there are plenty. I know I've posted at least 5 in the problems section.

How about some pictures of the problem?
Opie Yutts Reviewed by Opie Yutts on . Yellow spots...Fox Farm nutes I have started seeing a common problem on here...Yellow spotting on leaves, by growers using Fox Farm. I have had this problem myself. IMHO, what is going on, is we are over feeding, causing a Ph imbalance, leading to lock-out...I have troubleshooted the HELL out of this issue...with help from Stinky, WH, reaper...and others. So my conclusion is stated. Give me your thoughts, and share your issues if you have had any. I think the solution is simple. (thanks JG2007) We should use the minimum Rating: 5