Lisa, I agree with Lin that the plants need more frequent watering and perhaps higher humidity. I think it is perhaps time to re-pot too. The media doesn't look so hot to my eyes. I no longer grow 'standard" Phal., only growing compacts or sub-compacts (that are generally mounted). Phal. have always given me trouble, so needless to say, with the problems I have had with them, I am probably not the person you want answers from.
