I just bought a blooming den. and the leaves are starting to yellow. I am a new grower so I'm following the directions of the grower that sold it to me. He told me that Den.'s like a lot of morning light so I have mine in the window of a west facing window. It's been there for about 3 weeks and now the leaves are turning yellow. Common sense is to move the plant but how far - I don't want it to start getting too little light? Please help I don't want to kill my first orchid! Thanks