Mark these are your plants....you are going to live or die by them. (you know what I mean.... ) I am less worried about overfert, ph etc for one reason.....I know you've already dealt with both of these issues and have your eye on them. Am I wrong in thinking that you will not make the same mistake twice? That is what I am betting on. But ultimely of course, you have to make the decision what is best and I will certainly support you no matter how you go about dealing with it. These people have much more experience than I do in growing in soil.....no question there. I do think, though that you will have issues until you can solve your humidity problem. My feeling is that you are trying to cure an infection without penicillin or something......you can only do so much. That's why I think you need to get drastic with things. Cut those damaged leaves. Put fungal spray on a rag and wipe down your walls with it. The more proactive you get the more you will hedge your bets. (Disclaimer: again....you must follow your own instincts...)

My camera totally sucks w/close-ups so unless you want a shot of a big fuzzy blur I'll have to wait until I get my cool new one.

I must say though.....I've been an uproar myself since discovering my own humidity probs. It's funny how fixing one problem opens up the door to another. :wtf: