Phal leaves yellowing?

[james mickelso]

Muse, if there is no water condensing on the inside of this clear pot then I would say it is dry. My clear pots have moisture inside the pot until it becomes dry and then I water. Also are you using good water on it? Bottled or tap that is low in dissolved solids? And it cpould be that the plant only has enough root mass to support a certain number of leaves and so tosses one away. That is usually what those leaves look like. The plant switches from supporting the leaf to drawing out it's reserves of starches and sugars. The leaf stops photosynthesizing and turns yellow.