Quote Originally Posted by OrchidAddict View Post
Don't worry...you'll know they're getting too much sun if the leaves start developing a reddish hue. Red leaves=too much sun. I've heard a lot of people say that a good general rule is to give your orchid as much sun as it can handle without burning.
Ohh, be a little carefull with "light until red spots appear" as not all Phals have anthocyanins in their leafs to produce these! The leaf instead turn very pale greenish yellow or white when exposed to to much light (the green photosystems are bleached). Instead, sunburn on Phals often come from overheating. The leafs are cooked and soft mushy part appear that turn black when they dry. Easiest test is to tuch your leaf and if they feel hot they are starting to overheat and you should move them to "lower" light.

/M